corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
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119011644 | cond-mat/0302440 | 2003-02-21 | Field-induced XY behavior in the S=1/2 antiferromagnet on the square lattice | Making use of the quantum Monte Carlo method based on the worm algorithm, we study the thermodynamic behavior of the S=1/2 isotropic Heisenberg antiferromagnet on the square lattice in a uniform magnetic field varying from very small values up to the saturation value. The field is found to induce a Berezinskii-Kosterli... | [
"cond-mat.str-el",
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{
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"name": "Alessandro Cuccoli",
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"author_id": "t roscilde_1",
"name": "Tommaso Roscilde",
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6586477 | math/0302271 | 2003-02-22 | Excited Random Walk | A random walk on Z^d is excited if the first time it visits a vertex there is a bias in one direction, but on subsequent visits to that vertex the walker picks a neighbor uniformly at random. We show that excited random walk on Z^d, is transient iff d>1. | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14259080 | cs/0302032 | 2003-02-22 | Empirical Methods for Compound Splitting | Compounded words are a challenge for NLP applications such as machine translation (MT). We introduce methods to learn splitting rules from monolingual and parallel corpora. We evaluate them against a gold standard and measure their impact on performance of statistical MT systems. Results show accuracy of 99.1% and perf... | [
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119071156 | hep-ph/0302205 | 2003-02-23 | Extra dimensions and invisible decay of orthopositronium | We point out that some models with infinite additional dimension(s) of Randall-Sundrum type predict the disappearance of orthopositronium (o-Ps) into additional dimension(s). The experimental signature of this effect is the o-Ps -> invisible decay of orthopositronium which may occur at a rate within three orders of mag... | [
"hep-ph"
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{
"author_id": "s gninenko_1",
"name": "Sergei [\"N.\"] Gninenko",
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"author_id": "n krasnikov_1",
"name": "Nikolai [\"V.\"] Krasnikov",
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14443799 | nlin/0302055 | 2003-02-24 | Reverse Integration for Computing Stationary Points of Unstable Stiff Systems | Using existing, forward-in-time integration schemes, we demonstrate that it is possible to compute unstable, saddle-type fixed points of stiff systems of ODEs when the stable compenents are fast (i.e., rapidly damped) while the unstable components are slow. The approach has implications for the reverse (backward in tim... | [
"nlin.CD"
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{
"author_id": "c gear_1",
"name": "Charles [\"William\"] Gear",
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{
"author_id": "i kevrekidis_1",
"name": "Ioannis [\"G.\"] Kevrekidis",
"publication_history": null,
"h_index": null... | null |
5972789 | physics/0302086 | 2003-02-24 | Conformal mapping of some non-harmonic functions in transport theory | Conformal mapping has been applied mostly to harmonic functions, i.e. solutions of Laplace's equation. In this paper, it is noted that some other equations are also conformally invariant and thus equally well suited for conformal mapping in two dimensions. In physics, these include steady states of various nonlinear di... | [
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"name": "Martin [\"Z.\"] Bazant",
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] | null |
8932668 | astro-ph/0302534 | 2003-02-25 | Complex C: A Low-Metallicity High-Velocity Cloud Plunging into the Milky Way | (Abridged) We present a new high-resolution (7 km/s FWHM) echelle spectrum of 3C 351 obtained with STIS. 3C 351 lies behind the low-latitude edge of high-velocity cloud Complex C, and the new spectrum provides accurate measurements of O I, Si II, Al II, Fe II, and Si III absorption lines at the velocity of the HVC. We ... | [
"astro-ph"
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16018694 | astro-ph/0302518 | 2003-02-25 | Optical and radio behaviour of the BL Lacertae object 0716+714 | Eight optical and four radio observatories have been intensively monitoring the BL Lac object 0716+714 in the last years: 4854 data points have been collected in the UBVRI bands since 1994, while radio light curves extend back to 1978. Many of these data are presented here for the first time. The long-term trend shown ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
85512042 | astro-ph/0302519 | 2003-02-25 | What determines the strength and the slowdown rate of bars ? | Isolated barred galaxies evolve by redistributing their angular momentum, which, emitted by material in the inner disc at resonance with the bar, can be absorbed by resonant material in the outer disc, or in the halo. The amount of angular momentum that can be emitted/absorbed at a given resonance depends on the distri... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17219204 | math/0302301 | 2003-02-25 | Permutation Statistics on the Alternating Group | Let $A_n\subseteq S_n$ denote the alternating and the symmetric groups on $1,...,n$. MacMahaon's theorem, about the equi-distribution of the length and the major indices in $S_n$, has received far reaching refinements and generalizations, by Foata, Carlitz, Foata-Schutzenberger, Garsia-Gessel and followers. Our main go... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119530604 | astro-ph/0302526 | 2003-02-25 | Hubble Space Telescope Observations of Binary Very-Low-Mass Stars and Brown Dwarfs | We present analysis of Hubble Space Telescope images of 82 nearby field late-M and L dwarfs. We resolve 13 of these systems into double M/L dwarf systems and identify an additional possible binary. Combined with previous observations of 20 L dwarfs, we derive an observed binary fraction for ultracool dwarfs of 17+4-3%,... | [
"astro-ph"
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"name": "John [\"E.\"] Gizis",
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15936961 | astro-ph/0302511 | 2003-02-25 | The Galactic disk mass function: reconciliation of the HST and nearby determinations | We derive and parametrize the Galactic mass function (MF) below 1 $\msol$ characteristic of both single objects and binary systems. We resolve the long standing discrepancy between the MFs derived from the HST and from the nearby luminosity functions, respectively. We show that this discrepancy stemmed from {\it two} c... | [
"astro-ph"
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"target.author.publication_history.key_reference"
] | null | null | null |
5866897 | nlin/0302057 | 2003-02-26 | Efficient Algorithm on a Non-staggered Mesh for Simulating Rayleigh-Benard Convection in a Box | An efficient semi-implicit second-order-accurate finite-difference method is described for studying incompressible Rayleigh-Benard convection in a box, with sidewalls that are periodic, thermally insulated, or thermally conducting. Operator-splitting and a projection method reduce the algorithm at each time step to the... | [
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{
"author_id": "k chiam_1",
"name": "Keng-Hwee Chiam",
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"author_id": "m lai_8",
"name": "Ming-Chih Lai",
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"... | null |
9619753 | cond-mat/0302546 | 2003-02-26 | Dynamics of market correlations: Taxonomy and portfolio analysis | The time dependence of the recently introduced minimum spanning tree description of correlations between stocks, called the ``asset tree'' have been studied to reflect the economic taxonomy. The nodes of the tree are identified with stocks and the distance between them is a unique function of the corresponding element ... | [
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{
"author_id": "j onnela_1",
"name": "Jukka-Pekka Onnela",
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{
"author_id": "a chakraborti_2",
"name": "Anirban Chakraborti",
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12796352 | quant-ph/0302187 | 2003-02-26 | Positive operator valued measures covariant with respect to an irreducible representation | Given an irreducible representation of a group G, we show that all the covariant positive operator valued measures based on G/Z, where Z is a central subgroup, are described by trace class, trace one positive operators. | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
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"name": "Ernesto [\"de\"] Vito",
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14237908 | astro-ph/0302543 | 2003-02-26 | The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions | We use a large sample of galaxies from the Two Micron All Sky Survey (2MASS) and the Sloan Digital Sky Survey (SDSS) to calculate galaxy luminosity and stellar mass functions in the local Universe. We estimate k-corrections, evolution corrections, and stellar mass-to-light ratios (M/Ls) by fitting the galaxy colors wit... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15698061 | cond-mat/0302571 | 2003-02-27 | A new approach to dynamic finite-size scaling | In this work we have considered the Taylor series expansion of the dynamic scaling relation of the magnetization with respect to small initial magnetization values in order to study the dynamic scaling behaviour of 2- and 3-dimensional Ising models. We have used the literature values of the critical exponents and of th... | [
"cond-mat",
"hep-lat"
] | null | [
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{
"author_id": "m dilaver_1",
"name": "Mehmet Dilaver",
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{
"author_id": "s gunducc_1",
"name": "Semra Gunducc",
"publication_history": null,
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... | null |
119458181 | astro-ph/0302560 | 2003-02-27 | Constraints on the equation of state of dark energy and the Hubble constant from stellar ages and the CMB | We place tight constraints on the redshift-averaged, effective value of the equation of state of dark energy, w, using only the absolute ages of Galactic stars and the observed position of the first peak in the angular power spectrum of the CMB. We find w<-0.8 at the 68% confidence level. If we further consider that w ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119059320 | cond-mat/0302591 | 2003-02-27 | Aspect-ratio dependence of the spin stiffness of a two-dimensional XY model | We calculate the superfluid stiffness of 2D lattice hard-core bosons at half-filling (equivalent to the S=1/2 XY-model) using the squared winding number quantum Monte Carlo estimator. For L_x x L_y lattices with aspect ratio L_x/L_y=R, and L_x,L_y -> infinity, we confirm the recent prediction [N. Prokof'ev and B.V. Svi... | [
"cond-mat.supr-con"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r melko_1",
"name": "Roger [\"G.\"] Melko",
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{
"author_id": "a sandvik_1",
"name": "Anders [\"W.\"] Sandvik",
"publication_history": null,
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118845790 | astro-ph/0302571 | 2003-02-27 | Cosmological constraints from the CMB and Ly-alpha forest revisited | The WMAP team has recently highlighted the usefulness of combining the Ly-alpha forest constraints with those from the cosmic microwave background (CMB). This combination is particularly powerful as a probe of the primordial shape of the power spectrum. Converting between the Ly-alpha forest observations and the linear... | [
"astro-ph"
] | null | [
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{
"corpus_id": "197473020",
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{
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{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
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{
"author_id": "p mcdonald_1",
"name": "Patrick Mcdonald",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
11361062 | cond-mat/0302574 | 2003-02-27 | Effect of Non-Gaussian Noise Sources in a Noise Induced Transition | Here we study a noise induced transition when the system is driven by a noise source taken as colored and non-Gaussian. We show--using both, a theoretical approximation and numerical simulations-- that there is a shift of the transition as the noise departs from the Gaussian behavior. Also, we confirm the reentrance ef... | [
"cond-mat.stat-mech",
"nlin.PS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "h wio_1",
"name": "Horacio [\"S.\"] Wio",
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{
"author_id": "r toral_1",
"name": "Raúl Toral",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
28818185 | gr-qc/0302120 | 2003-02-28 | On 3+1 Dimensional Friedman-Robertson-Walker Universes with Matter | We examine the dynamical behavior of matter coupled to gravity in the context of a linear Klein-Gordon equation coupled to a Friedman-Robertson-Walker metric. The resulting ordinary differential equations can be decoupled, the effect of gravity being traced in rendering the equation for the scalar field nonlinear. We o... | [
"gr-qc"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t christodoulakis_1",
"name": "Theodosios Christodoulakis",
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{
"author_id": "c helias_0",
"name": "C. Helias",
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10956302 | astro-ph/0302603 | 2003-02-28 | cD galaxy contribution to the strong lensing cross sections of galaxy clusters | We perform ray-tracing simulations evaluating the effect of a cD galaxy on the strong lensing properties of five galaxy cluster halos obtained from N-body simulations. The cD galaxy is modelled using both axially symmetric and elliptical models and assuming several masses for its dark matter halo. The effect of the cD ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15767906 | hep-th/0303006 | 2003-03-02 | A holographic reduction of Minkowski space-time | Minkowski space can be sliced, outside the lightcone, in terms of Euclidean Anti-de Sitter and Lorentzian de Sitter slices. In this paper we investigate what happens when we apply holography to each slice separately. This yields a dual description living on two spheres, which can be interpreted as the boundary of the l... | [
"hep-th",
"gr-qc",
"hep-ph",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
22383109 | cond-mat/0303041 | 2003-03-03 | Scale-Free and Stable Structures in Complex {\em Ad hoc} networks | Unlike the well-studied models of growing networks, where the dominant dynamics consist of insertions of new nodes and connections, and rewiring of existing links, we study {\em ad hoc} networks, where one also has to contend with rapid and random deletions of existing nodes (and, hence, the associated links). We first... | [
"cond-mat.dis-nn",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history",
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{
"corpus_id": "11295775",
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] | [
{
"author_id": "n sarshar_1",
"name": "Nima Sarshar",
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{
"author_id": "v roychowdhury_1",
"name": "Vwani [\"P.\"] Roychowdhury",
"publication_history": null,
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"nu... | null |
7758611 | hep-th/0303016 | 2003-03-03 | Moduli Stabilization in Chiral Type IIB Orientifold Models with Fluxes | We consider Type IIB orientifold models on Calabi-Yau spaces with three-form G-flux turned on. These fluxes freeze some of the complex structure moduli and the complex dilaton via an F-term scalar potential. By introducing pairs of D9-anti-D9 branes with abelian magnetic fluxes it is possible to freeze also some of the... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
44863668 | hep-ph/0303013 | 2003-03-03 | Inclusive Jet Production, Parton Distributions, and the Search for New Physics | Jet production at the Tevatron probes some of the smallest distance scales currently accessible. A gluon distribution that is enhanced at large x compared to previous determinations provides a better description of the Run 1b jet data from both CDF and D0. However, considerable uncertainty still remains regarding the g... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15541842 | astro-ph/0303039 | 2003-03-03 | White Dwarf Asteroseismology and the ^12C(alpha,gamma)^16O Rate | Due to a new global analysis method, it is now possible to measure the internal composition of pulsating white dwarf stars, even with relatively simple theoretical models. The precise internal mixture of carbon and oxygen is the largest single source of uncertainty in ages derived from white dwarf cosmochronometry, and... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14658163 | physics/0303010 | 2003-03-03 | The Gap-Tooth Method in Particle Simulations | We explore the gap-tooth method for multiscale modeling of systems represented by microscopic physics-based simulators, when coarse-grained evolution equations are not available in closed form. A biased random walk particle simulation, motivated by the viscous Burgers equation, serves as an example. We construct macro-... | [
"physics.class-ph",
"physics.gen-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "c gear_1",
"name": "Charles [\"William\"] Gear",
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},
{
"author_id": "j li_250",
"name": "Ju Li",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
18470501 | astro-ph/0303065 | 2003-03-04 | The Relationship Between Stellar Light Distributions of Galaxies and their Formation Histories | A major problem in extragalactic astronomy is the inability to distinguish in a robust, physical, and model independent way how galaxy populations are related to each other and to their formation histories. A similar, but distinct, and also long standing question is whether the structural appearances of galaxies, as se... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
10898560 | hep-th/0303035 | 2003-03-05 | SD-brane gravity fields and rolling tachyons | S(pacelike)D-branes are objects arising naturally in string theory when Dirichlet boundary conditions are imposed on the time direction. SD-brane physics is inherently time-dependent. Previous investigations of gravity fields of SD-branes have yielded undesirable naked spacelike singularities. We set up the problem of ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7799857 | cond-mat/0303084 | 2003-03-05 | Experimental Study of Noise-induced Phase Synchronization in Vertical-cavity Lasers | We report the experimental evidence of noise-induced phase synchronization in a vertical cavity laser. The polarized laser emission is entrained with the input periodic pump modulation when an optimal amount of white, gaussian noise is applied. We characterize the phenomenon, evaluating the average frequency of the out... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s barbay_0",
"name": "Sylvain Barbay",
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{
"author_id": "g giacomelli_3",
"name": "Giovanni Giacomelli",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
119740361 | math/0303071 | 2003-03-05 | Bernoulli Sieve | Bernoulli sieve is a recursive construction of a random composition (ordered partition) of integer $n$. This composition can be induced by sampling from a random discrete distribution which has frequencies equal to the sizes of component intervals of a stick-breaking interval partition of $[0,1]$. We exploit Markov pro... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15420022 | astro-ph/0303119 | 2003-03-05 | Discovery of a short plateau phase in the early evolution of a gamma-ray burst afterglow | We report optical observations during the first hour of the gamma-ray burst (GRB) afterglow of GRB021004. Our observation revealed the existence of a short plateau phase, in which the afterglow remained at almost constant brightness, before an ordinary rapid fading phase. This plateau phase lasted for about 2 hours fro... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2832966 | hep-ph/0303051 | 2003-03-06 | Event Shape/Energy Flow Correlations | We introduce a set of correlations between energy flow and event shapes that are sensitive to the flow of color at short distances in jet events. These correlations are formulated for a general set of event shapes, which includes jet broadening and thrust as special cases. We illustrate the method for electron-positron... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118963542 | cond-mat/0303119 | 2003-03-06 | Anisotropy and Ising-like transition of the S=5/2 two-dimensional Heisenberg antiferromagnet Mn-formate di-Urea | Recently reported measurements of specific heat on the compound Mn-formate di-Urea (Mn-f-2U) by Takeda et al. [Phys. Rev. B 63, 024425 (2001)] are considered. As a model to describe the overall thermodynamic behavior of such compound, the easy-axis two-dimensional Heisenberg antiferromagnet is proposed and studied by m... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a cuccoli_1",
"name": "Alessandro Cuccoli",
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{
"author_id": "t roscilde_1",
"name": "Tommaso Roscilde",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
6611510 | math-ph/0303021 | 2003-03-07 | Statistical mechanics of anharmonic lattices | This paper is a review on the statistical mechanics of anharmonic oscillators coupled to heat reservoirs. We discuss stationary states (existence and ergodic properties) and entropy production (positivity, Green-Kubo formulas and the Gallavotti-Cohen fluctuation theorem).This review will appear in the Proceedings of th... | [
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"math.MP",
"math.PR"
] | null | [
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{
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{
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] | [
{
"author_id": "l rey-bellet_1",
"name": "Luc Rey-Bellet",
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}
] | null |
13173524 | astro-ph/0303188 | 2003-03-10 | SUMSS: A Wide-Field Radio Imaging Survey of the Southern Sky. II. The Source Catalogue | This paper is the second in a series describing the Sydney University Molonglo Sky Survey (SUMSS) being carried out at 843MHz with the Molonglo Observatory Synthesis Telescope (MOST). The survey will consist of ~590 4.3deg. x 4.3deg. mosaic images with 45"x45"cosec|dec.| resolution, and a source catalogue. In this pape... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8087387 | cond-mat/0303183 | 2003-03-10 | Properties of highly clustered networks | We propose and solve exactly a model of a network that has both a tunable degree distribution and a tunable clustering coefficient. Among other things, our results indicate that increased clustering leads to a decrease in the size of the giant component of the network. We also study SIR-type epidemic processes within t... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn",
"q-bio"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
59393 | nlin/0303020 | 2003-03-10 | When Can we Call a System Self-organizing? | We do not attempt to provide yet another definition of selforganization, but explore the conditions under which we can model a system as self-organizing. These involve the dynamics of entropy, and the purpose, aspects, and description level chosen by an observer. We show how, changing the level or "graining" of descrip... | [
"nlin.AO",
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
4309400 | nlin/0303021 | 2003-03-10 | Contextual Random Boolean Networks | We propose the use of Deterministic Generalized Asynchronous Random Boolean Networks [Gershenson, 2002] as models of contextual deterministic discrete dynamical systems. We show that changes in the context have drastic effects on the global properties of the same networks, namely the average number of attractors and th... | [
"nlin.AO",
"cond-mat.dis-nn",
"cs.CC",
"nlin.CG"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "5789761",
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}
] | [
{
"author_id": "c gershenson_1",
"name": "Carlos Gershenson",
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},
{
"author_id": "j broekaert_1",
"name": "Jan Broekaert",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
16293983 | math/0303109 | 2003-03-10 | Ricci flow with surgery on three-manifolds | This is a technical paper, which is a continuation of math.DG/0211159. Here we construct Ricci flow with surgeries and verify most of the assertions, made in section 13 of that e-print; the exceptions are (1) the statement that manifolds that can collapse with local lower bound on sectional curvature are graph manifold... | [
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5745067 | quant-ph/0303055 | 2003-03-11 | Classical deterministic complexity of Edmonds' problem and Quantum Entanglement | This paper continues research initiated in quant-ph/0201022 . The main subject here is the so-called Edmonds' problem of deciding if a given linear subspace of square matrices contains a nonsingular matrix . We present a deterministic polynomial time algorithm to solve this problem for linear subspaces satisfying a spe... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
98494838 | cond-mat/0303189 | 2003-03-11 | Temperature dependent total scattering structural study of CaCu3Ti4O12 | X-ray and neutron powder diffraction data as a function of temperature are analyzed for the colossal dielectric constant material CaCu3Ti4O12. The local structure is studied using atomic pair distribution function analysis. No evidence is found for enhanced oxygen displacement parameters suggesting that short-range oct... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "e bozin_1",
"name": "Emil [\"S.\"] Bozin",
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},
{
"author_id": "v petkov_1",
"name": "Valeri Petkov",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
2785154 | hep-ex/0303011 | 2003-03-11 | Central Pseudorapidity Gaps in Events with a Leading Antiproton at the Fermilab Tevatron pbar-p Collider | We report a measurement of the fraction of events with a large pseudorapidity gap $\Delta\eta$ within the pseudorapidity region available to the proton dissociation products $X$ in $\bar p+p\to \bar p+X$. For a final state $\bar p$ of fractional momentum loss $\xi_{\bar p}$ and 4-momentum transfer squared $t_{\bar p}$ ... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d acosta_1",
"name": "Darin Acosta",
"publication_history": null,
"h_index": null,
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"num_citations": null
},
{
"author_id": "t affolder_1",
"name": "Tony Affolder",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
13896358 | astro-ph/0303241 | 2003-03-11 | Global General Relativistic Magnetohydrodynamic Simulations of Accretion Tori | This paper presents an initial survey of the properties of accretion flows in the Kerr metric from three-dimensional, general relativistic magnetohydrodynamic simulations of accretion tori. We consider three fiducial models of tori around rotating, both prograde and retrograde, and nonrotating black holes; these three ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119333113 | astro-ph/0303230 | 2003-03-11 | HST astrometry: the Galactic constant Theta_0/R_0 | From multi-epoch WFPC2/HST observations we present astrometric measurements of the absolute motion of the bulge stars. The presence of an extragalactic point-source candidate allows us to measure the difference between the Oort constants, A-B = Theta_0/R_0. We find: Theta_0/R_0 = 27.4 +/- 1.8 km/s/kpc. | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l bedin_1",
"name": "Luigi [\"Rolly\"] Bedin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g piotto_1",
"name": "Giampaolo Piotto",
"publication_history": null,
"h_index": null,
"num_papers... | null |
17968416 | astro-ph/0303215 | 2003-03-11 | Near-Infrared Synchrotron Emission from Cas A | High energy observations of Cas A suggested the presence of synchrotron radiation, implying acceleration of cosmic rays by young supernova remnants. We detect synchrotron emission from Cas A in the near-infrared using Two Micron All Sky Survey (2MASS) and Palomar 200 inch PFIRCAM observations. The remnant is detected i... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119432823 | quant-ph/0303071 | 2003-03-11 | Unambiguous discrimination of mixed states | We present the conditions under which probabilistic error-free discrimination of mixed states is possible, and provide upper and lower bounds on the maximum probability of success for the case of two mixed states. We solve certain special cases exactly, and demonstrate how the problems of state filtering and state comp... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t rudolph_1",
"name": "Terry Rudolph",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r spekkens_1",
"name": "Robert [\"W.\"] Spekkens",
"publication_history": null,
"h_index": null,
"num_pape... | null |
15976478 | astro-ph/0303257 | 2003-03-12 | Simulations of Normal Spiral Galaxies | Results are presented of numerical simulations of normal isolated late type spiral galaxies. Specifically the galaxy NGC 628 is used as a template. The method employs a TREESPH code including stellar particles, gas particles, cooling and heating of the gas, star formation according to a Jeans criterion, and Supernova f... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5122186 | cond-mat/0303234 | 2003-03-12 | Dynamics of Conformal Maps for a Class of Non-Laplacian Growth Phenomena | Time-dependent conformal maps are used to model a class of growth phenomena limited by coupled non-Laplacian transport processes, such as nonlinear diffusion, advection, and electro-migration. Both continuous and stochastic dynamics are described by generalizing conformal-mapping techniques for viscous fingering and di... | [
"cond-mat.stat-mech",
"cond-mat.soft"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m bazant_1",
"name": "Martin [\"Z.\"] Bazant",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j choi_72",
"name": "Jaehyuk Choi",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
15389279 | astro-ph/0303263 | 2003-03-12 | Bowen Fluorescence from the Companion Star in X1822-371 | We present a clear evidence for the motion of the companion star in the Low Mass X-Ray Binary (LMXB) X1822-371. We detect NIII lambda 4640 emission moving in antiphase with the radial velocity curve of the neutron star and produced on the X-ray heated hemisphere of the donor star. From the motion of this feature we der... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2213198 | astro-ph/0303267 | 2003-03-12 | A wide field Hubble Space Telescope study of the cluster CL0024+16 at z=0.4. I: morphological distributions to 5 Mpc radius | We describe a new wide field Hubble Space Telescope survey of the galaxy cluster Cl0024+16 (z~0.4) consisting of a sparse-sampled mosaic of 39 Wide Field and Planetary Camera 2 images which extends to a cluster radius of 5 Mpc. [Abridged] We examine both the morphology-radius (T-R) and morphology-density (T-Sigma) rela... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14293581 | cond-mat/0303241 | 2003-03-13 | Computing the ground state solution of Bose-Einstein condensates by a normalized gradient flow | In this paper, we prove the energy diminishing of a normalized gradient flow which provides a mathematical justification of the imaginary time method used in physical literatures to compute the ground state solution of Bose-Einstein condensates (BEC). We also investigate the energy diminishing property for the discreti... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17300331 | quant-ph/0303081 | 2003-03-13 | Quantum random walks - an introductory overview | This article aims to provide an introductory survey on quantum random walks. Starting from a physical effect to illustrate the main ideas we will introduce quantum random walks, review some of their properties and outline their striking differences to classical walks. We will touch upon both physical effects and comput... | [
"quant-ph",
"cs.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17673435 | astro-ph/0303309 | 2003-03-13 | Stellar Contribution to the Galactic Bulge Microlensing Optical Depth | We estimate the optical depth to self-lensing by stars in the Galactic bulge using the HST star counts of Holtzman et al and Zoccali et al as extrapolated by Gould into the brown-dwarf and remnant regimes and deprojected along the line of sight using the model of Dwek et al. We find a self-lensing optical depth tau(bul... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10295627 | astro-ph/0303306 | 2003-03-13 | Variable Cosmological Constant as a Planck Scale Effect | We construct a semiclassical FLRW cosmological model assuming a running cosmological constant (CC). It turns out that the CC becomes variable at arbitrarily low energies due to the remnant quantum effects of the heaviest particles, e.g. the Planck scale physics. These effects are universal in the sense that they lead t... | [
"astro-ph",
"gr-qc",
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "i shapiro_1",
"name": "Ilya [\"L.\"] Shapiro",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "j solà_1",
"name": "Joan Solà",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
44016819 | cond-mat/0303247 | 2003-03-13 | Temperature-induced barium de-trapping from a double-well potential in Ba6Ge25 | The crystal structure of barium-germanium clathrate Ba6Ge25 was studied using neutron powder diffraction in the temperature range 20-300K. The compound was found to be cubic (S.G. P4_1 23) in the entire temperature range. However, the fully-ordered model of the crystal structure (no split sites) is marginal at room tem... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m schmidt_9",
"name": "M. Schmidt",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p radaelli_1",
"name": "Paolo [\"G.\"] Radaelli",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
14849525 | astro-ph/0303335 | 2003-03-14 | The large-scale anomalous microwave emission revisited by WMAP | We present a new study of the high latitude galactic contributions to the millimeter sky, based on an analysis of the WMAP data combined with several templates of dust emission (DIRBE/COBE and FIRAS/COBE) and gas tracers (HI and Halpha). To study the IR to millimeter properties of the diffuse sky at high galactic latit... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7373899 | astro-ph/0303341 | 2003-03-14 | The Incidence of Strong-Lensing Clusters in the Red-Sequence Cluster Survey | The incidence of giant arcs due to strong-lensing clusters of galaxies is known to be discrepant with current theoretical expectations. This result derives from a comparison of several cluster samples to predictions in the framework of the currently favored $\Lambda$CDM cosmology, and one possible explanation for the d... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5746499 | physics/0303057 | 2003-03-14 | Modeling extracellular field potentials and the frequency-filtering properties of extracellular space | Extracellular local field potentials (LFP) are usually modeled as arising from a set of current sources embedded in a homogeneous extracellular medium. Although this formalism can successfully model several properties of LFPs, it does not account for their frequency-dependent attenuation with distance, a property essen... | [
"physics.bio-ph",
"q-bio"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
8130510 | cs/0303009 | 2003-03-14 | Unfolding Partiality and Disjunctions in Stable Model Semantics | The paper studies an implementation methodology for partial and disjunctive stable models where partiality and disjunctions are unfolded from a logic program so that an implementation of stable models for normal (disjunction-free) programs can be used as the core inference engine. The unfolding is done in two separate ... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16765102 | astro-ph/0303394 | 2003-03-17 | Nearly 5000 Distant Early-Type Galaxies in COMBO-17: a Red Sequence and its Evolution since z~1 | We present the rest-frame colors and luminosities of ~25000 m_R<24 galaxies in the redshift range 0.2<z<1.1, drawn from 0.78 square degrees of the COMBO-17 survey. We find that the rest-frame color distribution of these galaxies is bimodal at all redshifts out to z~1. This bimodality permits a model-independent definit... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
39172426 | cond-mat/0303327 | 2003-03-17 | The origin of degree correlations in the Internet and other networks | It has been argued that the observed anticorrelation between the degrees of adjacent vertices in the network representation of the Internet has its origin in the restriction that no two vertices have more than one edge connecting them. Here we introduce a formalism for modeling ensembles of graphs with single edges onl... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
38253718 | quant-ph/0303132 | 2003-03-20 | Unification of Dynamical Decoupling and the Quantum Zeno Effect | We unify the quantum Zeno effect (QZE) and the "bang-bang" (BB) decoupling method for suppressing decoherence in open quantum systems: in both cases strong coupling to an external system or apparatus induces a dynamical superselection rule that partitions the open system's Hilbert space into quantum Zeno subspaces. Our... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p facchi_1",
"name": "Paolo Facchi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "d lidar_1",
"name": "Daniel [\"A.\"] Lidar",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
18405347 | nlin/0303048 | 2003-03-21 | Global well-posedness and multi-tone solutions of a class of nonlinear nonlocal cochlear models in hearing | We study a class of nonlinear nonlocal cochlear models of the transmission line type, describing the motion of basilar membrane (BM) in the cochlea. They are damped dispersive partial differential equations (PDEs) driven by time dependent boundary forcing due to the input sounds. The global well-posedness in time follo... | [
"nlin.PS"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j xin_1",
"name": "Jack Xin",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "y qi_15",
"name": "Yingyong Qi",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citatio... | null |
53596904 | hep-lat/0303015 | 2003-03-21 | Parton distribution functions in the pion from lattice QCD | We analyze the moments of parton distribution functions in the pion calculated in lattice QCD, paying particular attention to their chiral extrapolation. Using the lowest three non-trivial moments calculated on the lattice, we assess the accuracy with which the x dependence of both the valence and sea quark distributio... | [
"hep-lat",
"hep-ex",
"hep-ph",
"nucl-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "w detmold_1",
"name": "William Detmold",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "w melnitchouk_1",
"name": "Wally Melnitchouk",
"publication_history": null,
"h_index": null,
"num_papers... | null |
36082887 | cond-mat/0303451 | 2003-03-21 | Non-topographic description of inherent structure dynamics in glass formers | We show that the dynamics between inherent structures in glass forming systems can be understood in purely dynamical terms, without any reference to ``topographic'' features of the potential energy landscape. This ``non-topographic'' interpretation is based instead on the existence of dynamical heterogeneities and on t... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "l berthier_1",
"name": "Ludovic Berthier",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j garrahan_1",
"name": "Juan [\"P.\"] Garrahan",
"publication_history": null,
"h_index": null,
"num_pa... | null |
3259919 | astro-ph/0303527 | 2003-03-24 | The Torino Observatory Parallax Program: White Dwarf Candidates | We present parallax determinations for six white dwarf candidates in the Torino Observatory Parallax Program. The absolute parallaxes are found with precisions at the 2-3 milliarcsecond level. For WD 1126+185 we find a distance incompatible with being a white dwarf, implying an incorrect classification. For WD 2216+484... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10583072 | astro-ph/0303541 | 2003-03-24 | On the Radii of Extrasolar Giant Planets | We have computed evolutionary models for extrasolar planets which range in mass from 0.1 to 3.0 Jovian Masses, and which range in equilibrium temperature from 113 K to 2000 K. We present four sequences of models, designed to show the structural effects of a solid core and of internal heating due to the conversion of ki... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
329551 | math-ph/0303056 | 2003-03-25 | Radon-Nikodym derivatives of quantum operations | Given a completely positive (CP) map $T$, there is a theorem of the Radon-Nikodym type [W.B. Arveson, Acta Math. {\bf 123}, 141 (1969); V.P. Belavkin and P. Staszewski, Rep. Math. Phys. {\bf 24}, 49 (1986)] that completely characterizes all CP maps $S$ such that $T-S$ is also a CP map. This theorem is reviewed, and sev... | [
"math-ph",
"math.MP",
"math.OA",
"quant-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "m raginsky_1",
"name": "Maxim Raginsky",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
221278130 | cond-mat/0303516 | 2003-03-25 | The structure and function of complex networks | Inspired by empirical studies of networked systems such as the Internet, social networks, and biological networks, researchers have in recent years developed a variety of techniques and models to help us understand or predict the behavior of these systems. Here we review developments in this field, including such conce... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13564059 | hep-th/0303218 | 2003-03-25 | Affine Kac-Moody algebras, CHL strings and the classification of tops | Candelas and Font introduced the notion of a `top' as half of a three dimensional reflexive polytope and noticed that Dynkin diagrams of enhanced gauge groups in string theory can be read off from them. We classify all tops satisfying a generalized definition as a lattice polytope with one facet containing the origin a... | [
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18379894 | math/0303302 | 2003-03-25 | Classification of 3-dimensional isolated rational hypersurface singularities with C*-action | In the paper "Algebraic classification of rational CR structures on topological 5-sphere with transversal holomorphic S^1-action in C^4" (Yau and Yu, Math. Nachrichten 246-247(2002), 207-233), we give algebraic classification of rational CR structures on the topological 5-sphere with transversal holomorphic S^1-action ... | [
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15594027 | math/0303305 | 2003-03-25 | The min--max construction of minimal surfaces | In this paper we survey with complete proofs some well--known, but hard to find, results about constructing closed embedded minimal surfaces in a closed 3-dimensional manifold via min--max arguments. This includes results of J. Pitts, F. Smith, and L. Simon and F. Smith. | [
"math.AP",
"math.DG",
"math.GT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16758612 | astro-ph/0303578 | 2003-03-26 | Radial evolution of solar wind intermittency in the inner heliosphere | We analyzed intermittency in the solar wind, as observed on the ecliptic plane, looking at magnetic field and velocity fluctuations between 0.3 and 1 AU, for both fast and slow wind and for compressive and directional fluctuations. Our analysis focused on the property that probability distribution functions of a fluctu... | [
"astro-ph",
"nlin.CD",
"physics.space-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15266964 | astro-ph/0303589 | 2003-03-26 | LBQS 1429-0053: a binary quasar rather than a lensed quasar | Very deep ESO/VLT FORS1 and ISAAC images, as well as HST NICMOS2 data are used to infer the nature of the quasar pair LBQS 1429-0053 A and B, either a binary quasar or a doubly-imaged lensed quasar. Direct search of a putative lensing galaxy is unsuccessful . Moreover, no galaxy overdensity close to the quasar pair is ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2288992 | math-ph/0303061 | 2003-03-26 | Generalized algebra within a nonextensive statistics | By considering generalized logarithm and exponential functions used in nonextensive statistics, the four usual algebraic operators : addition, subtraction, product and division, are generalized. The properties of the generalized operators are investigated. Some standard properties are preserved, e.g., associativity, co... | [
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15232809 | astro-ph/0303573 | 2003-03-26 | Evaluating GAIA performances on eclipsing binaries. II. Orbits and stellar parameters for V781 Tau, UV Leo and GK Dra | The orbits and physical parameters of three close, double-lined G0 eclipsing binaries have been derived combining H_P, V_T, B_T photometry from the Hipparcos/Tycho mission with 8480-8740 \AA ground-based spectroscopy. The setup is mimicking the photometric and spectroscopic observations that should be obtained by GAIA.... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119081984 | cond-mat/0303583 | 2003-03-27 | On coarse-graining by the Inverse Monte Carlo method: Dissipative Particle Dynamics simulations made to a precise tool in soft matter modeling | We present a promising coarse-graining strategy for linking micro- and mesoscales of soft matter systems. The approach is based on effective pairwise interaction potentials obtained from detailed atomistic molecular dynamics (MD) simulations, which are then used in coarse-grained dissipative particle dynamics (DPD) sim... | [
"cond-mat.soft"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14415674 | physics/0303112 | 2003-03-27 | A modified SPH approach for fluids with large density differences | We introduce a modified SPH approach that is based on discretising the particle density instead of the mass density. This approach makes it possible to use SPH particles with very different masses to simulate multi-phase flows with large differences in mass density between the phases. We test our formulation with a sim... | [
"physics.comp-ph",
"astro-ph",
"physics.flu-dyn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15089265 | astro-ph/0303603 | 2003-03-27 | A high velocity ionised outflow and XUV photosphere in the narrow emission line quasar PG1211+143 | We report on the analysis of a ~60 ksec XMM observation of the bright, narrow emission line quasar PG 1211+143. Absorption lines are seen in both EPIC and RGS spectra corresponding to H- and He-like ions of Fe, S, Mg, Ne, O, N and C. The observed line energies indicate an ionised outflow velocity of ~24000 km s^-1. The... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18787602 | cond-mat/0303584 | 2003-03-27 | Self-referential behaviour, overreaction and conventions in financial markets | We study a generic model for self-referential behaviour in financial markets, where agents attempt to use some (possibly fictitious) causal correlations between a certain quantitative information and the price itself. This correlation is estimated using the past history itself, and is used by a fraction of agents to de... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "381936",
"num_citations": null
}
] | [
{
"author_id": "m wyart_1",
"name": "Matthieu Wyart",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j bouchaud_1",
"name": "Jean-Philippe Bouchaud",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
13970480 | astro-ph/0303599 | 2003-03-27 | The origin of IRS 16: dynamically driven inspiral of a dense star cluster to the Galactic center? | We use direct N-body simulations to study the inspiral and internal evolution of dense star clusters near the Galactic center. These clusters sink toward the center due to dynamical friction with the stellar background, and may go into core collapse before being disrupted by the Galactic tidal field. If a cluster reach... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
25937839 | cond-mat/0303579 | 2003-03-27 | Asset trees and asset graphs in financial markets | This paper introduces a new methodology for constructing a network of companies called a dynamic asset graph. This is similar to the dynamic asset tree studied recently, as both are based on correlations between asset returns. However, the new modified methodology does not, in general, lead to a tree but a graph, or se... | [
"cond-mat.stat-mech",
"physics.soc-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "j onnela_1",
"name": "Jukka-Pekka Onnela",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a chakraborti_2",
"name": "Anirban Chakraborti",
"publication_history": null,
"h_index": null,
"num_pa... | null |
19087342 | cond-mat/0303597 | 2003-03-28 | Stochastic series expansion method for quantum Ising models with arbitrary interactions | A quantum Monte Carlo algorithm for the transverse Ising model with arbitrary short- or long-range interactions is presented. The algorithm is based on sampling the diagonal matrix elements of the power series expansion of the density matrix (stochastic series expansion), and avoids the interaction summations necessary... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14332425 | cond-mat/0303600 | 2003-03-28 | Designability and Thermal Stability of Protein Structures | Only about 1,000 qualitatively different protein folds are believed to exist in nature. Here, we review theoretical studies which suggest that some folds are intrinsically more designable than others, {\it i.e.} are lowest energy states of an unusually large number of sequences. The sequences associated with these fold... | [
"cond-mat.stat-mech",
"cond-mat.soft",
"physics.bio-ph",
"q-bio.BM"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n wingreen_1",
"name": "Ned [\"S.\"] Wingreen",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h li_359",
"name": "Hao Li",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
10828518 | quant-ph/0303178 | 2003-03-31 | Interference of Quantum Channels | We show how interferometry can be used to characterise certain aspects of general quantum processes, in particular, the coherence of completely positive maps. We derive a measure of coherent fidelity, maximum interference visibility and the closest unitary operator to a given physical process under this measure. | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6093757 | astro-ph/0303652 | 2003-03-31 | Magnetic field evolution in Bok globules | Using the Submillimeter Common-User Bolometer Array (SCUBA) at the James Clerk Maxwell Telescope (JCMT), we obtained submillimeter polarization maps of the Bok globules B335, CB230, and CB244 at 850micron. We find strongly aligned polarization vectors in the case of B335 and CB230, indicating a strong coupling of the m... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1031788 | cs/0304002 | 2003-03-31 | The Mad Hatter´s Cocktail Party: A Social Mobile Audio Space Supporting Multiple Simultaneous Conversations | This paper presents a mobile audio space intended for use by gelled social groups. In face-to-face interactions in such social groups, conversational floors change frequently, e.g., two participants split off to form a new conversational floor, a participant moves from one conversational floor to another, etc. To date,... | [
"cs.HC",
"cs.SD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17668999 | astro-ph/0303660 | 2003-03-31 | On the Evolution and Appearance of a Surviving Companion after a Type Ia Supernova Explosion | One promising method to test progenitor models for Type Ia supernovae is to identify surviving companion stars in historical supernova remnants. A surviving companion will have been strongly affected by its interaction with the supernova ejecta. Here we systematically explore the evolution and appearance of a typical c... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15119782 | astro-ph/0304038 | 2003-04-01 | Formation of Massive Black Holes in Dense Star Clusters | We review possible dynamical formation processes for central massive black holes in dense star clusters. We focus on the early dynamical evolution of young clusters containing a few thousand to a few million stars. One natural formation path for a central seed black hole in these systems involves the development of the... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16022720 | astro-ph/0304027 | 2003-04-01 | XMM observation of the dynamically young galaxy cluster CL 0939+4713 | We present an XMM observation of the distant galaxy cluster CL 0939+4713. The X-ray image shows pronounced substructure, with two main subclusters forming the cluster core. This is an indication that the cluster is a dynamically young system. This conclusion is supported by the temperature distribution: a hot region is... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16983044 | cond-mat/0304018 | 2003-04-01 | On the nonextensivity of the long range X-Y model | It will be given analytical and numerical evidence supporting that the X-Y model yields an extensive, i.e. proportional to the number of degrees of freedom N, internal energy U for any value of the interaction range. | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r toral_1",
"name": "Raúl Toral",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
30515083 | cond-mat/0304031 | 2003-04-01 | First-order nature of the ferromagnetic phase transition in (La-Ca)MnO_3 near optimal doping | Neutron scattering has been used to study the nature of the ferromagnetic transition in single crystals of La_0.7Ca_0.3MnO_3 and La_0.8Ca_0.2MnO_3, and polycrystalline samples of La_0.67Ca_0.33MnO_3 and La_5/8Ca_3/8MnO_3 where the naturally occurring O-16 can be replaced with the O-18 isotope. Small angle neutron scatt... | [
"cond-mat.str-el",
"cond-mat.supr-con"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c adams_5",
"name": "C. [\"P.\"] Adams",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "c adams_5",
"name": "C. [\"P.\"] Adams",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
16649199 | astro-ph/0304017 | 2003-04-01 | Entropy scaling in galaxy clusters: insights from an XMM-Newton observation of the poor cluster A1983 | An XMM-Newton observation of the cool (kT=2.1 keV) cluster A1983, at z=0.044, is presented. Gas density and temperature profiles are calculated for the inner 500 h_{50}^{-1} kpc (~0.35 r_200). The outer regions of the surface brightness profile are well described with a beta model with beta=0.74, but the central region... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6998285 | cond-mat/0304020 | 2003-04-01 | Discrete small world networks | Small world models are networks consisting of many local links and fewer long range 'shortcuts', used to model networks with a high degree of local clustering but relatively small diameter. Here, we concern ourselves with the distribution of typical inter-point network distances. We establish approximations to the dist... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "60545",
"num_citations": null
},
{
"corpus_id": "14824301",
"num_citations": null
},
{
"corpus_id": "15144274",
"num_citations": null
},
{
"corpus_id": "5740210",
"num_citations": null
}
] | [
{
"author_id": "a barbour_1",
"name": "Andrew [\"D.\"] Barbour",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "g reinert_1",
"name": "Gesine Reinert",
"publication_history": null,
"h_index": null,
"num_paper... | null |
6316274 | astro-ph/0304034 | 2003-04-01 | Three-Point Correlations in Weak Lensing Surveys: Model Predictions and Applications | We use the halo model of clustering to compute two- and three-point correlation functions for weak lensing, and apply them in a new statistical technique to measure properties of massive halos. We present analytical results on the eight shear three-point correlation functions constructed using combination of the two sh... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6387310 | cs/0304006 | 2003-04-02 | Learning to Paraphrase: An Unsupervised Approach Using Multiple-Sequence Alignment | We address the text-to-text generation problem of sentence-level paraphrasing -- a phenomenon distinct from and more difficult than word- or phrase-level paraphrasing. Our approach applies multiple-sequence alignment to sentences gathered from unannotated comparable corpora: it learns a set of paraphrasing patterns rep... | [
"cs.CL"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "r barzilay_1",
"name": "Regina Barzilay",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l lee_11",
"name": "Lillian Lee",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
28175371 | hep-th/0304017 | 2003-04-02 | Wigner's little group and Berry's phase for massless particles | The ``little group'' for massless particles (namely, the Lorentz transformations $\Lambda$ that leave a null vector invariant) is isomorphic to the Euclidean group E2: translations and rotations in a plane. We show how to obtain explicitly the rotation angle of E2 as a function of $\Lambda$ and we relate that angle to ... | [
"hep-th",
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n lindner_1",
"name": "Netanel [\"H.\"] Lindner",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a peres_1",
"name": "Asher Peres",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
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