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 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
15878254 | math/0404287 | 2004-04-16 | A tropical morphism related to the hyperplane arrangement of the complete bipartite graph | We undertake a combinatorial study of the piecewise linear map g : R^{2m+2n} --> R^{mn} which assigns to the four vectors a, A in R^m and b, B in R^n the m by n matrix given by g_{ij} = min (a_i + b_j, A_i+B_j). This map arises naturally in Pachter and Sturmfels's work on the tropical geometry of statistical models. Th... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8914045 | q-bio/0404017 | 2004-04-17 | Modeling Interactome: Scale-Free or Geometric? | Networks have been used to model many real-world phenomena to better understand the phenomena and to guide experiments in order to predict their behavior. Since incorrect models lead to incorrect predictions, it is vital to have a correct model. As a result, new techniques and models for analyzing and modeling real-wor... | [
"q-bio.MN"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
17835485 | hep-th/0404120 | 2004-04-18 | Conformal Field Theory and Torsion Elements of the Bloch Group | We argue that rational conformally invariant quantum field theories in two dimensions are closely related to torsion elements of the algebraic K-theory group K_3(C). If such a theory has an integrable matrix perturbation with purely elastic scattering matrix, then the partition function has a canonical sum representati... | [
"hep-th",
"math.KT",
"math.NT"
] | null | [
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] | null | null | null |
5533950 | math/0404325 | 2004-04-18 | Asymptotic Improvement of the Gilbert-Varshamov Bound on the Size of Binary Codes | Given positive integers $n$ and $d$, let $A_2(n,d)$ denote the maximum size of a binary code of length $n$ and minimum distance $d$. The well-known Gilbert-Varshamov bound asserts that $A_2(n,d) \geq 2^n/V(n,d-1)$, where $V(n,d) = \sum_{i=0}^{d} {n \choose i}$ is the volume of a Hamming sphere of radius $d$. We show th... | [
"math.CO",
"cs.IT",
"math.AC",
"math.IT"
] | null | [
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] | null | null | null |
18690433 | hep-ph/0404151 | 2004-04-19 | Decoupling supernova and neutrino oscillation physics with LAr TPC detectors | Core collapse supernovae are a huge source of all flavor neutrinos. The flavor composition, energy spectrum and time structure of the neutrino burst from a galactic supernova can provide information about the explosion mechanism and the mechanisms of proto neutron star cooling. Such data can also give information about... | [
"hep-ph"
] | null | [
"target.author.publication_history"
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{
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{
"author_id": "i gil-botella_1",
"name": "Inés Gil-Botella",
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{
"author_id": "a rubbia_1",
"name": "André Rubbia",
"publication_history": null,
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"num_papers": nu... | null |
119540163 | quant-ph/0404100 | 2004-04-19 | Weakly-entangled states are dense and robust | Motivated by the mathematical definition of entanglement we undertake a rigorous analysis of the separability and non-distillability properties in the neighborhood of those three-qubit mixed states which are entangled and completely bi-separable. Our results are not only restricted to this class of quantum states, sinc... | [
"quant-ph"
] | null | [
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{
"author_id": "r orús_1",
"name": "Román Orús",
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{
"author_id": "r tarrach_0",
"name": "Rolf Tarrach",
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119456263 | cond-mat/0404446 | 2004-04-19 | A Novel Dielectric Anomaly in Cuprates and Nickelates: Signature of an Electronic Glassy State | The low-frequency dielectric response of hole-doped insulators La_{2}Cu_{1-x}Li_{x}O_{4} and La_{2-x}Sr_{x}NiO_{4} shows a large dielectric constant \epsilon ^{'} at high temperature and a step-like drop by a factor of 100 at a material-dependent low temperature T_{f}. T_{f} increases with frequency and the dielectric ... | [
"cond-mat.str-el",
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{
"author_id": "t park_21",
"name": "Tuson Park",
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"author_id": "z nussinov_1",
"name": "Zohar Nussinov",
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... | null |
10238416 | astro-ph/0404358 | 2004-04-19 | Theoretical isochrones in several photometric systems II. The Sloan Digital Sky Survey ugriz system | Following Paper I, we provide extended tables of bolometric corrections, extinction coefficients, stellar isochrones, and integrated magnitudes and colours of single-burst stellar populations, for the Sloan Digital Sky Survey (SDSS) ugriz photometric system. They are tested on comparisons with DR1 data for a few stella... | [
"astro-ph"
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"target.author.publication_history.key_reference"
] | null | null | null |
13584951 | math/0404356 | 2004-04-20 | Compositions of random transpositions | Let $Y=(y_1,y_2,...)$, $y_1\ge y_2\ge...$, be the list of sizes of the cycles in the composition of $c n$ transpositions on the set $\{1,2,...,n\}$. We prove that if $c>1/2$ is constant and $n\to\infty$, the distribution of $f(c)Y/n$ converges to PD(1), the Poisson-Dirichlet distribution with paramenter 1, where the fu... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
775882 | math/0404370 | 2004-04-20 | Subdominant matroid ultrametrics | Given a matroid M on the ground set E, the Bergman fan B(M), or space of M-ultrametrics, is a polyhedral complex in R^E which arises in several different areas, such as tropical algebraic geometry, dynamical systems, and phylogenetics. Motivated by the phylogenetic situation, we study the following problem: Given a poi... | [
"math.CO",
"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5852686 | quant-ph/0404107 | 2004-04-20 | Realization of a photonic CNOT gate sufficient for quantum computation | We report the first experimental demonstration of a quantum controlled-NOT gate for different photons, which is classically feed-forwardable. In the experiment, we achieved this goal with the use only of linear optics, an entangled ancillary pair of photons and post-selection. The techniques developed in our experiment... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14052264 | astro-ph/0404393 | 2004-04-20 | Spectroscopic Observations and Analysis of the Peculiar SN 1999aa | We present an extensive new time-series of spectroscopic data of the peculiar SN 1999aa in NGC 2595. Our data set includes 25 optical spectra between -11 and +58 days with respect to B-band maximum light, providing an unusually complete time history. The early spectra resemble those of a SN 1991T-like object but with a... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11540404 | math/0404374 | 2004-04-21 | Newton-Krylov solvers for time-steppers | We study how the Newton-GMRES iteration can enable dynamic simulators (time-steppers) to perform fixed-point and path-following computations.For a class of dissipative problems, whose dynamics are characterized by a slow manifold, the Jacobian matrices in such computations are compact perturbations of the identity. We ... | [
"math.DS"
] | null | [
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{
"author_id": "c kelley_1",
"name": "C. [\"T.\"] Kelley",
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{
"author_id": "i kevrekidis_1",
"name": "Ioannis [\"G.\"] Kevrekidis",
"publication_history": null,
"h_index": null,
... | null |
17091588 | physics/0404100 | 2004-04-21 | Data handling, reconstruction, and simulation for the KLOE experiment | The broad physics program of the KLOE experiment is based on the high event rate at the Frascati phi factory, and calls for an up-to-date system for data acquisition and processing. In this review of the KLOE offline environment, the architecture of the data-processing system and the programs developed for data reconst... | [
"physics.ins-det",
"hep-ex"
] | null | [
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] | null | null | null |
119335143 | hep-ex/0404025 | 2004-04-21 | Search for Dark Matter WIMPs using Upward Through-going Muons in Super-Kamiokande | We present the results of indirect searches for Weakly Interacting Massive Particles (WIMPs) with 1679.6 live days of data from the Super-Kamiokande detector using neutrino-induced upward through-going muons. The search is performed by looking for an excess of high energy muon neutrinos from WIMP annihilations in the S... | [
"hep-ex",
"astro-ph"
] | null | [
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{
"author_id": "s desai_11",
"name": "S. Desai",
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{
"author_id": "y ashie_0",
"name": "Yasunobu Ashie",
"publication_history": null,
"h_index": null,
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118979310 | hep-ph/0404175 | 2004-04-21 | Particle Dark Matter: Evidence, Candidates and Constraints | In this review article, we discuss the current status of particle dark matter, including experimental evidence and theoretical motivations. We discuss a wide array of candidates for particle dark matter, but focus on neutralinos in models of supersymmetry and Kaluza-Klein dark matter in models of universal extra dimens... | [
"hep-ph",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119371868 | physics/0404108 | 2004-04-22 | Small scale structure of homogeneous turbulent shear flow | The structure of homogeneous turbulent shear flow is studied using data generated by Direct Numerical Simulations (DNS) and a linear analysis for both compressible and incompressible cases. At large values of the mean shear rate, the Rapid Distortion Theory (RDT) limit is approached. Analytical solutions are found for ... | [
"physics.flu-dyn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d livescu_1",
"name": "Daniel Livescu",
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{
"author_id": "c madnia_1",
"name": "Cyrus [\"K.\"] Madnia",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
7738201 | astro-ph/0404456 | 2004-04-22 | Discovery of a candidate inner Oort cloud planetoid | We report the discovery of the minor planet 2003 VB12 (popularly named Sedna), the most distant object ever seen in the solar system. Pre-discovery images from 2001, 2002, and 2003 have allowed us to refine the orbit sufficiently to conclude that 2003 VB12 is on a highly eccentric orbit which permanently resides well b... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14614941 | hep-ph/0404190 | 2004-04-22 | Neutrino oscillation studies with laser-driven beam dump facilities | A new mechanism is suggested for efficient proton acceleration in the GeV energy range; applications to non-conventional high intensity proton drivers and, hence, to low-energy (10-200 MeV) neutrino sources are discussed. In particular we investigate possible uses to explore subdominant $\bar{\nu}_\mu \to \bar{\nu}_e$ ... | [
"hep-ph",
"hep-ex",
"physics.plasm-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s bulanov_1",
"name": "S. [\"V.\"] Bulanov",
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{
"author_id": "t esirkepov_1",
"name": "Timur Zh. Esirkepov",
"publication_history": null,
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18666142 | astro-ph/0404477 | 2004-04-23 | Wide Angle Redshift Distortions Revisited | We explore linear redshift distortions in wide angle surveys from the point of view of symmetries. We show that the redshift space two-point correlation function can be expanded into tripolar spherical harmonics of zero total angular momentum $S_{l_1 l_2 l_3}(\hat x_1, \hat x_2, \hat x)$. The coefficients of the expans... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119343492 | cond-mat/0404594 | 2004-04-26 | Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7 | Dy2Ti2O7 has been advanced as an ideal spin ice. We present a neutron scattering investigation of a sample of 162Dy2Ti2O7. The scattering intensity has been mapped in zero applied field in the hhl and hk0 planes at temperatures between 0.05 K and 20 K. The measured diffuse scattering (in the static approximation) has b... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t fennell_1",
"name": "Tom Fennell",
"publication_history": null,
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},
{
"author_id": "o petrenko_0",
"name": "O. [\"A.\"] Petrenko",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
51962817 | cond-mat/0404617 | 2004-04-26 | String-net condensation: A physical mechanism for topological phases | We show that quantum systems of extended objects naturally give rise to a large class of exotic phases - namely topological phases. These phases occur when the extended objects, called ``string-nets'', become highly fluctuating and condense. We derive exactly soluble Hamiltonians for 2D local bosonic models whose groun... | [
"cond-mat.str-el",
"cond-mat.mes-hall",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119036284 | cond-mat/0404631 | 2004-04-27 | Phase Separation in Li$_x$FePO$_4$ Induced by Correlation Effects | We report on a significant failure of LDA and GGA to reproduce the phase stability and thermodynamics of mixed-valence Li$_x$FePO$_4$ compounds. Experimentally, Li$_x$FePO$_4$ compositions ($0 \leq x \leq 1$) are known to be unstable and phase separate into Li FePO$_4$ and FePO$_4$. However, first-principles calculatio... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "f zhou_9",
"name": "Fei Zhou",
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},
{
"author_id": "c marianetti_1",
"name": "Chris [\"A.\"] Marianetti",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
15235771 | hep-ph/0404239 | 2004-04-27 | Cosmological neutrinos | The current status of neutrino cosmology is reviewed, from the question of neutrino decoupling and the presence of sterile neutrinos to the effects of neutrinos on the cosmic microwave background and large scale structure. Particular emphasis is put on cosmological neutrino mass measurements. | [
"hep-ph",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
262793437 | cond-mat/0404652 | 2004-04-27 | Detecting Network Communities: a new systematic and efficient algorithm | An efficient and relatively fast algorithm for the detection of communities in complex networks is introduced. The method exploits spectral properties of the graph Laplacian-matrix combined with hierarchical-clustering techniques, and includes a procedure to maximize the ``modularity'' of the output. Its performance is... | [
"cond-mat.stat-mech",
"cond-mat.other"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119443655 | astro-ph/0404567 | 2004-04-28 | Assessing the effects of foregrounds and sky removal in WMAP | Many recent analyses have indicated that large scale WMAP data display anomalies that appear inconsistent with the standard cosmological paradigm. However, the effects of foreground contamination, which require elimination of some fraction of the data, have not been carefully investigated due to the complexity in the a... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a slosar_1",
"name": "Anže Slosar",
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{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
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"nu... | null |
9633485 | astro-ph/0404545 | 2004-04-28 | Sunyaev-Zeldovich effect in WMAP and its effect on cosmological parameters | We use multi-frequency information in first year WMAP data to search for the Sunyaev-Zeldovich (SZ) effect. WMAP has sufficiently broad frequency coverage to constrain SZ without the addition of higher frequency data: the SZ power spectrum amplitude is expected to increase 50% from W to Q frequency band. This, in combi... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k huffenberger_1",
"name": "Kevin [\"M.\"] Huffenberger",
"publication_history": null,
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},
{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
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16243841 | hep-ex/0404037 | 2004-04-28 | A new experiment to search for the invisible decay of the orthopositronium | We propose an experiment to search for invisible decays of orthopositronium (o-Ps) with a 90% confidence sensitivity in the branching ratio as low as $10^{-8}$. Evidence for this decay mode would unambigously signal new physics: either the existence of extra--dimensions or fractionally charged particles or new light ga... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a badertscher_1",
"name": "A. Badertscher",
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{
"author_id": "p crivelli_1",
"name": "Paolo Crivelli",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
10795694 | astro-ph/0404589 | 2004-04-29 | The subhalo populations of LCDM dark haloes | We use a large cosmological simulation and a variety of high resolution resimulations of individual cluster and galaxy haloes to study the systematics of subhalo populations over ranges of 1000 in halo mass and 1000 in the ratio of subhalo to parent halo mass. The subhalo populations of different haloes are not scaled ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14654479 | astro-ph/0404600 | 2004-04-30 | Inferring the dark matter power spectrum from the Lyman-alpha forest in high-resolution QSO absorption spectra | We use the LUQAS sample (Kim et al. 2004), a set of 27 high-resolution and high signal-to-noise QSO absorption spectra at a median redshift of z=2.25, and the data from Croft et al. (2002) at a median redshift of z=2.72, together with a large suite of high-resolution large box-size hydro-dynamical simulations, to estim... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3996698 | nlin/0404058 | 2004-04-30 | Detecting order and chaos in Hamiltonian systems by the SALI method | We use the Smaller Alignment Index (SALI) to distinguish rapidly and with certainty between ordered and chaotic motion in Hamiltonian flows. This distinction is based on the different behavior of the SALI for the two cases: the index fluctuates around non--zero values for ordered orbits, while it tends rapidly to zero ... | [
"nlin.CD",
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c skokos_1",
"name": "Ch. Skokos",
"publication_history": null,
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{
"author_id": "c skokos_1",
"name": "Ch. Skokos",
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5111619 | hep-th/0404261 | 2004-04-30 | Black Holes with Scalar Hair and Asymptotics in N=8 Supergravity | We consider N=8 gauged supergravity in D=4 and D=5. We show one can weaken the boundary conditions on the metric and on all scalars with $m^2 <-{(D-1)^2 \over 4}+1$, while preserving the asymptotic anti-de Sitter (AdS) symmetries. Each scalar admits a one-parameter family of AdS-invariant boundary conditions for which ... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17424162 | astro-ph/0405006 | 2004-05-01 | Neutrinos from pre-supernova star | Analysis of the massive star properties during C, Ne, O and Si burning i.e. the neutrino-cooled stage, leads to the simplified neutrino emission model. In the framework of this model we have simulated spectrum of the antineutrinos. Flux normalized according to the massive star model with explicitly given neutrino lumin... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17678194 | physics/0405009 | 2004-05-03 | Extending Granger causality to nonlinear systems | We consider extension of Granger causality to nonlinear bivariate time series. In this frame, if the prediction error of the first time series is reduced by including measurements from the second time series, then the second time series is said to have a causal influence on the first one. Not all the nonlinear predicti... | [
"physics.data-an",
"physics.med-ph",
"q-bio.QM"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n ancona_2",
"name": "Nicola Ancona",
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{
"author_id": "d marinazzo_1",
"name": "Daniele Marinazzo",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
1839997 | cs/0405005 | 2004-05-03 | Maximum-likelihood decoding of Reed-Solomon Codes is NP-hard | Maximum-likelihood decoding is one of the central algorithmic problems in coding theory. It has been known for over 25 years that maximum-likelihood decoding of general linear codes is NP-hard. Nevertheless, it was so far unknown whether maximum- likelihood decoding remains hard for any specific family of codes with no... | [
"cs.CC",
"cs.DM",
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
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{
"author_id": "v guruswami_1",
"name": "Venkatesan Guruswami",
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{
"author_id": "a vardy_1",
"name": "Alexander Vardy",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
118878555 | astro-ph/0405013 | 2004-05-03 | The Lyman-alpha Forest Power Spectrum from the Sloan Digital Sky Survey | We measure the power spectrum, P_F(k,z), of the transmitted flux in the Ly-alpha forest using 3035 high redshift quasar spectra from the Sloan Digital Sky Survey. This sample is almost two orders of magnitude larger than any previously available data set, yielding statistical errors of ~0.6% and ~0.005 on, respectively... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "10794058",
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{
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{
"corpus_id": "15796646",
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{
"corpus_id": "15068235",
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] | [
{
"author_id": "p mcdonald_1",
"name": "Patrick Mcdonald",
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{
"author_id": "u seljak_2",
"name": "Uroš Seljak",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
2935193 | math/0405051 | 2004-05-04 | Explicit representation of finite predictor coefficients and its applications | We consider the finite-past predictor coefficients of stationary time series, and establish an explicit representation for them, in terms of the MA and AR coefficients. The proof is based on the alternate applications of projection operators associated with the infinite past and the infinite future. Applying the result... | [
"math.ST",
"math.PR",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
41585903 | hep-ex/0405004 | 2004-05-04 | Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV | We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu- in p-p(bar) collisions at sqrt(s) = 1.96 TeV. Using approximately 230 pb^-1 of data collected with the Run II D0 detector, we observe 522 +/- 100 X(3872) candidates. The mass difference between the X(3872) state and the ... | [
"hep-ex",
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v abazov_1",
"name": "Victor [\"Mukhamedovich\"] Abazov",
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{
"author_id": "b abbott_2",
"name": "B. Abbott",
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"h_index": null,
"num_pa... | null |
3263524 | cs/0405017 | 2004-05-04 | Data Mining Approach for Analyzing Call Center Performance | The aim of our research was to apply well-known data mining techniques (such as linear neural networks, multi-layered perceptrons, probabilistic neural networks, classification and regression trees, support vector machines and finally a hybrid decision tree neural network approach) to the problem of predicting the qual... | [
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m paprzycki_1",
"name": "Marcin Paprzycki",
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{
"author_id": "a abraham_2",
"name": "Ajith Abraham",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
8955243 | gr-qc/0405015 | 2004-05-04 | A spatially-VSL gravity model with 1-PN limit of GRT | A scalar gravity model is developed according the 'geometric conventionalist' approach introduced by Poincare (Einstein 1921, Poincare 1905, Reichenbach 1957, Gruenbaum1973). In principle this approach allows an alternative interpretation and formulation of General Relativity Theory (GRT), with distinct i) physical con... | [
"gr-qc"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [
{
"corpus_id": "15239526",
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}
] | [
{
"author_id": "j broekaert_1",
"name": "Jan Broekaert",
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"h_index": null,
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}
] | null |
14746575 | hep-ph/0405040 | 2004-05-05 | Electroweak symmetry breaking after LEP1 and LEP2 | In a generic 'universal' theory of electroweak symmetry breaking, non fine-tuned heavy new physics affects the low-energy data through four parameters, which include and properly extend the generally insufficient S and T. Only by adding the LEP2 data to the global electroweak fit, can all these four form factors be det... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119476280 | astro-ph/0405087 | 2004-05-05 | New Grids of ATLAS9 Model Atmospheres | New opacity distribution functions (ODFs) for several metallicities have been computed. The main improvements upon previous ODFs computed by Kurucz (1990) are: (1) the replacement of the solar abundances from Anders & Grevesse (1989) with those from Grevesse & Sauval (1998); (2) the replacement of the TiO lines provide... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118202149 | cs/0405020 | 2004-05-05 | A proof of Alon's second eigenvalue conjecture and related problems | In this paper we show the following conjecture of Noga Alon. Fix a positive integer d>2 and real epsilon > 0; consider the probability that a random d-regular graph on n vertices has the second eigenvalue of its adjacency matrix greater than 2 sqrt(d-1) + epsilon; then this probability goes to zero as n tends to infini... | [
"cs.DM",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
35190821 | quant-ph/0405023 | 2004-05-05 | An efficient algorithm to recognize local Clifford equivalence of graph states | In [Phys. Rev. A 69, 022316 (2004)] we presented a description of the action of local Clifford operations on graph states in terms of a graph transformation rule, known in graph theory as \emph{local complementation}. It was shown that two graph states are equivalent under the local Clifford group if and only if there ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8522538 | q-bio/0405004 | 2004-05-05 | Information theory in molecular biology | This article introduces the physics of information in the context of molecular biology and genomics. Entropy and information, the two central concepts of Shannon's theory of information and communication, are often confused with each other but play transparent roles when applied to statistical ensembles (i.e., identica... | [
"q-bio.BM",
"q-bio.PE"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
903411 | cs/0405027 | 2004-05-06 | Evolution of a Subsumption Architecture Neurocontroller | An approach to robotics called layered evolution and merging features from the subsumption architecture into evolutionary robotics is presented, and its advantages are discussed. This approach is used to construct a layered controller for a simulated robot that learns which light source to approach in an environment wi... | [
"cs.AI",
"cs.NE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j togelius_1",
"name": "Julian Togelius",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
3142856 | cond-mat/0405123 | 2004-05-06 | Complex Networks | An outline of recent work on complex networks is given from the point of view of a physicist. Motivation, achievements and goals are discussed with some of the typical applications from a wide range of academic fields. An introduction to the relevant literature and useful resources is also given. | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10439504 | hep-th/0405048 | 2004-05-06 | Beyond the veil: Inner horizon instability and holography | We show that scalar perturbations of the eternal, rotating BTZ black hole should lead to an instability of the inner (Cauchy) horizon, preserving strong cosmic censorship. Because of backscattering from the geometry, plane wave modes have a divergent stress tensor at the event horizon, but suitable wavepackets avoid th... | [
"hep-th",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119080356 | cond-mat/0405103 | 2004-05-06 | Probing ion transport at the nanoscale: Time-domain electrostatic force spectroscopy on glassy electrolytes | We have carried out time--domain electrostatic force spectroscopy on two different ion conducting glasses using an atomic force microscope. We compare the electrostatic force spectroscopic data obtained at different temperatures with macroscopic electrical data of the glasses. The overall consistency of the data shows ... | [
"cond-mat.mtrl-sci",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a schirmeisen_1",
"name": "André Schirmeisen",
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{
"author_id": "a taskiran_1",
"name": "Ahmet [\"Sevki\"] Taskiran",
"publication_history": null,
"h_index": null,
... | null |
119472051 | physics/0405026 | 2004-05-06 | The Extended Plane Wave Expansion Method in Three Dimensional Anisotropic Photonic Crystal | In this paper, we extend the conventional plane wave expansion method in 3D anisotropic photonic crystal to be able to calculate the complex $\mathbf{k}$ even if permittivity and permeability are complex numbers or the functions of $\omega$. There are some tricks in the derivation process, so we show the process in det... | [
"physics.comp-ph",
"physics.optics"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3084968 | hep-th/0405058 | 2004-05-07 | D-Brane Dynamics Near NS5-Branes | We use the Dirac-Born-Infeld action to study the real time dynamics of a $Dp$-brane propagating in the vicinity of $NS5$-branes. This problem is closely related to tachyon condensation on an unstable D-brane, with the role of the tachyon played by the radial mode on the D-brane. As the D-brane approaches the fivebranes... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119429142 | cond-mat/0405160 | 2004-05-07 | A linear response approach to the calculation of the effective interaction parameters in the LDA+U method | In this work we reexamine the LDA+U method of Anisimov and coworkers in the framework of a plane-wave pseudopotential approach. A simplified rotational-invariant formulation is adopted. The calculation of the Hubbard U entering the expression of the functional is discussed and a linear response approach is proposed tha... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18176012 | math/0405130 | 2004-05-07 | A Metric Inequality for the Thompson and Hilbert Geometries | There are two natural metrics defined on an arbitrary convex cone: Thompson's part metric and Hilbert's projective metric. For both, we establish an inequality giving information about how far the metric is from being non-positively curved. | [
"math.MG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17965901 | astro-ph/0405155 | 2004-05-09 | The local surface density of disc matter mapped by Hipparcos | We determine the surface density of matter in the disc of the Galaxy at the solar position using K giant stars. The local space density and luminosity function of the giants is determined using parallaxes from the Hipparcos satellite; for more distant giants, observed in a cone at the South Galactic Pole, distances are... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15163707 | hep-th/0405083 | 2004-05-10 | Counting Higher Genus Curves with Crosscaps in Calabi-Yau Orientifolds | We compute all loop topological string amplitudes on orientifolds of local Calabi-Yau manifolds, by using geometric transitions involving SO/Sp Chern-Simons theory, localization on the moduli space of holomorphic maps with involution, and the topological vertex. In particular we count Klein bottles and projective plane... | [
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
37745472 | quant-ph/0405045 | 2004-05-10 | Multiparticle entanglement purification for two-colorable graph states | We investigate multiparticle entanglement purification schemes which allow one to purify all two colorable graph states, a class of states which includes e.g. cluster states, GHZ states and codewords of various error correction codes. The schemes include both recurrence protocols and hashing protocols. We analyze these... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "h aschauer_1",
"name": "Hans Aschauer",
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{
"author_id": "w dür_1",
"name": "Wolfgang Dür",
"publication_history": null,
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"... | null |
626 | cs/0405035 | 2004-05-10 | Security-Performance Tradeoffs of Inheritance based Key Predistribution for Wireless Sensor Networks | Key predistribution is a well-known technique for ensuring secure communication via encryption among sensors deployed in an ad-hoc manner to form a sensor network. In this paper, we propose a novel 2-Phase technique for key predistribution based on a combination of inherited and random key assignments from the given ke... | [
"cs.NI",
"cs.CR"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r kannan_1",
"name": "Rajgopal Kannan",
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{
"author_id": "l ray_3",
"name": "Lydia Ray",
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"num... | null |
18033676 | astro-ph/0405193 | 2004-05-11 | A large stellar evolution database for population synthesis studies. I. Scaled solar models and isochrones | We present a large and updated stellar evolution database for low-, intermediate- and high-mass stars in a wide metallicity range, suitable for studying Galactic and extragalactic simple and composite stellar populations using population synthesis techniques. The stellar mass range is between \sim0.5Mo and 10Mo with a ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15192645 | astro-ph/0405211 | 2004-05-11 | Type Ia supernova rate at a redshift of ~ 0.1 | We present the type Ia rate measurement based on two EROS supernova search campaigns (in 1999 and 2000). Sixteen supernovae identified as type Ia were discovered. The measurement of the detection efficiency, using a Monte Carlo simulation, provides the type Ia supernova explosion rate at a redshift ~ 0.13. The result i... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [
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{
"corpus_id": "18098246",
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{
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{
"corpus_id": "14160000",
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},
{
"corpus_id": "118930469",
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... | [
{
"author_id": "g blanc_2",
"name": "Guillermo [\"A.\"] Blanc",
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{
"author_id": "c afonso_1",
"name": "Cristina Afonso",
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11027621 | astro-ph/0405198 | 2004-05-11 | The Geneva-Copenhagen survey of the Solar neighbourhood: Ages, metallicities, and kinematic properties of 14,000 F and G dwarfs | We present and discuss new determinations of metallicity, rotation, age, kinematics, and Galactic orbits for a complete, magnitude-limited, and kinematically unbiased sample of 16,682 nearby F and G dwarf stars. Our 63,000 new, accurate radial-velocity observations for nearly 13,500 stars allow identification of most o... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2717698 | cs/0405039 | 2004-05-12 | Catching the Drift: Probabilistic Content Models, with Applications to Generation and Summarization | We consider the problem of modeling the content structure of texts within a specific domain, in terms of the topics the texts address and the order in which these topics appear. We first present an effective knowledge-lean method for learning content models from un-annotated documents, utilizing a novel adaptation of a... | [
"cs.CL"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "r barzilay_1",
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},
{
"author_id": "l lee_11",
"name": "Lillian Lee",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
5856442 | astro-ph/0405232 | 2004-05-12 | Supernova / Acceleration Probe: A Satellite Experiment to Study the Nature of the Dark Energy | The Supernova / Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's expansion by performing a series of complementary systematics-controlled measurements. We describe a self-consistent reference mission desig... | [
"astro-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s aldering_0",
"name": "Snap [\"Collaboration\",\"G.\"] Aldering",
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},
{
"author_id": "w althouse_1",
"name": "W. [\"E.\"] Althouse",
"publication_history": null,
"h_ind... | null |
17871491 | astro-ph/0405233 | 2004-05-12 | The Swift Gamma-Ray Burst Mission | The Swift mission, scheduled for launch in early 2004, is a multiwavelength observatory for gamma-ray burst (GRB) astronomy. It is the first-of-its-kind autonomous rapid-slewing satellite for transient astronomy and pioneers the way for future rapid-reaction and multiwavelength missions. It will be far more powerful th... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
73678119 | math/0405208 | 2004-05-12 | Relaxed Averaged Alternating Reflections for Diffraction Imaging | We report on progress in algorithms for iterative phase retrieval. The theory of convex optimization is used to develop and to gain insight into counterparts for the nonconvex problem of phase retrieval. We propose a relaxation of averaged alternating reflectors and determine the fixed point set of the related operator... | [
"math.OC",
"math-ph",
"math.MP",
"physics.optics"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14667864 | cond-mat/0405293 | 2004-05-13 | A Theory for the Term Structure of Interest Rates | The Convolution and Master equations governing the time behavior of the term structure of Interest Rates are set up both for continuous variables and for their discretised forms. The notion of Seed is introduced. The discretised theoretical distributions matching the empirical data from the Federal Reserve System (FRS)... | [
"cond-mat.other"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
20799705 | gr-qc/0405068 | 2004-05-13 | An astronomical search for evidence of new physics: Limits on gravity-induced birefringence from the magnetic white dwarf RE J0317-853 | The coupling of the electromagnetic field directly with gravitational gauge fields leads to new physical effects that can be tested using astronomical data. Here we consider a particular case for closer scrutiny, a specific nonminimal coupling of torsion to electromagnetism, which enters into a metric-affine geometry o... | [
"gr-qc",
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9704156 | cond-mat/0405296 | 2004-05-13 | Reconstructing the Density of States by History-Dependent Metadynamics | We present a novel method for the calculation of the energy density of states D(E) for systems described by classical statistical mechanics. The method builds on an extension of a recently proposed strategy that allows the free energy profile of a canonical system to be recovered within a pre-assigned accuracy,[A. Laio... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c micheletti_1",
"name": "Cristian Micheletti",
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},
{
"author_id": "a laio_1",
"name": "Alessandro Laio",
"publication_history": null,
"h_index": null,
"num_papers":... | null |
2924526 | cond-mat/0405330 | 2004-05-14 | Dynamics of Shear-Transformation Zones in Amorphous Plasticity: Formulation in Terms of an Effective Disorder Temperature | This investigation extends earlier studies of a shear-transformation-zone (STZ) theory of plastic deformation in amorphous solids. My main purpose here is to explore the possibility that the configurational degrees of freedom of such systems fall out of thermodynamic equilibrium with the heat bath during persistent mec... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17582241 | physics/0405074 | 2004-05-14 | Projecting to a Slow Manifold: Singularly Perturbed Systems and Legacy Codes | The long-term dynamics of many dynamical systems evolve on an attracting, invariant "slow manifold" that can be parameterized by a few observable variables. Yet a simulation using the full model of the problem requires initial values for all variables. Given a set of values for the observables parameterizing the slow m... | [
"physics.comp-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "c gear_1",
"name": "Charles [\"William\"] Gear",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "t kaper_1",
"name": "Tasso [\"J.\"] Kaper",
"publication_history": null,
"h_index": null,
"num_p... | null |
10912903 | astro-ph/0405275 | 2004-05-14 | The distribution of cosmic-ray sources in the Galaxy, gamma-rays, and the gradient in the CO-to-H2 relation | We present a solution to the apparent discrepancy between the radial gradient in the diffuse Galactic gamma-ray emissivity and the distribution of supernova remnants, believed to be the sources of cosmic rays. Recent determinations of the pulsar distribution have made the discrepancy even more apparent. The problem is ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9780025 | math/0405287 | 2004-05-14 | Convergence rate of linear two-time-scale stochastic approximation | We study the rate of convergence of linear two-time-scale stochastic approximation methods. We consider two-time-scale linear iterations driven by i.i.d. noise, prove some results on their asymptotic covariance and establish asymptotic normality. The well-known result [Polyak, B. T. (1990). Automat. Remote Contr. 51 93... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
3153 | cs/0405050 | 2004-05-15 | Traffic Accident Analysis Using Decision Trees and Neural Networks | The costs of fatalities and injuries due to traffic accident have a great impact on society. This paper presents our research to model the severity of injury resulting from traffic accidents using artificial neural networks and decision trees. We have applied them to an actual data set obtained from the National Automo... | [
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m chong_4",
"name": "Miao [\"M.\"] Chong",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a abraham_2",
"name": "Ajith Abraham",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
119329934 | quant-ph/0405084 | 2004-05-16 | Minimal qubit tomography | We present, and analyze thoroughly, a highly symmetric and efficient scheme for the determination of a single-qubit state, such as the polarization properties of photons emitted by a single-photon source. In our scheme there are only four measured probabilities, just enough for the determination of the three parameters... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18195201 | astro-ph/0405329 | 2004-05-17 | Molecular Cloud Formation Behind Shock Waves | We examine the formation of molecular gas behind shocks in atomic gas using a chemical/dynamical model, particular emphasis is given to constraints the chemistry places on the dynamical evolution. The most important result of this study is to stress the importance of shielding the molecular gas from the destructive eff... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
252202006 | math/0405326 | 2004-05-17 | Definitions with no quantifier alternation | Let $D(G)$ be the minimum quantifier depth of a first order sentence $\Phi$ that defines a graph $G$ up to isomorphism. Let $D_0(G)$ be the version of $D(G)$ where we do not allow quantifier alternations in $\Phi$. Define $q_0(n)$ to be the minimum of $D_0(G)$ over all graphs $G$ of order $n$. We prove that for all $n$... | [
"math.LO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "o pikhurko_1",
"name": "Oleg Pikhurko",
"publication_history": null,
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},
{
"author_id": "j spencer_4",
"name": "Joel Spencer",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
32286116 | quant-ph/0405095 | 2004-05-17 | Efficient use of quantum resources for the transmission of a reference frame | We propose a covariant protocol for transmitting reference frames encoded on $N$ spins, achieving sensitivity $N^{-2}$ without the need of a pre-established reference frame and without using entanglement between sender and receiver. The protocol exploits the use of equivalent representations, which were overlooked in t... | [
"quant-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "g chiribella_1",
"name": "Giulio Chiribella",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "g d’ariano_1",
"name": "Giacomo [\"Mauro\"] D’Ariano",
"publication_history": null,
"h_index": null,
... | null |
1895368 | math/0405338 | 2004-05-17 | Rademacher processes and bounding the risk of function learning | We construct data dependent bounds on the risk in function learning problems. The bounds are based on the local norms of the Rademacher process indexed by the underlying function class and they do not require prior knowledge about the distribution of the training examples or any specific properties of the function clas... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
33668011 | physics/0405083 | 2004-05-17 | Radiation Pressure Dominate Regime of Relativistic Ion Acceleration | The electromagnetic radiation pressure becomes dominant in the interaction of the ultra-intense electromagnetic wave with a solid material, thus the wave energy can be transformed efficiently into the energy of ions representing the material and the high density ultra-short relativistic ion beam is generated. This regi... | [
"physics.plasm-ph",
"physics.acc-ph",
"physics.comp-ph",
"physics.space-ph"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "t esirkepov_1",
"name": "Timur Zh. Esirkepov",
"publication_history": null,
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},
{
"author_id": "m borghesi_2",
"name": "Marco Borghesi",
"publication_history": null,
"h_index": null,
"num_papers... | null |
13898952 | astro-ph/0405308 | 2004-05-17 | Discovery of kilogauss magnetic fields in three DA white dwarfs | We have detected longitudinal magnetic fields between 2 and 4 kG in three (WD 0446$-$790, WD 1105$-$048, WD 2359$-$434) out of a sample of 12 normal DA white dwarfs by using optical spectropolarimetry done with the VLT Antu 8 m telescope equipped with FORS1. With the exception of 40 Eri B (4 kG) these are the first pos... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18705466 | astro-ph/0405330 | 2004-05-17 | Gas Density, Stability, and Starbursts Near the Inner Lindblad Resonance of the Milky Way | A key project of the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO) reported by Martin et al. (2004) is the mapping of CO J=4-3 and J=7-6 emission from the inner Milky Way, allowing determination of gas density and temperature. Galactic center gas that Binney et al. (1991) identify as being on x_2 or... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16276467 | hep-ph/0405167 | 2004-05-18 | Fermion polarization in sfermion decays as a probe of CP phases in the MSSM | The longitudinal polarization of fermions (tops and taus) produced in sfermion decays to neutralinos or charginos can be a useful tool for the determination of SUSY parameters. We discuss this fermion polarization in the context of the MSSM with complex parameters. We show that the dependence on CP-violating phases can... | [
"hep-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t gajdosik_1",
"name": "Thomas Gajdosik",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r godbole_1",
"name": "Rohini [\"M.\"] Godbole",
"publication_history": null,
"h_index": null,
"num_pap... | null |
119139296 | math/0405362 | 2004-05-18 | Free energy in the generalized Sherrington-Kirkpatrick mean field model | Recently Michel Talagrand gave a rigorous proof of the Parisi formula in the Sherrington-Kirkpatrick model. In this paper we build upon the methodology developed by Talagrand and extend his result to the class of SK type models in which the spins have arbitrary prior distribution on a bounded subset of the real line. | [
"math.PR",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1503123 | quant-ph/0405098 | 2004-05-18 | Adiabatic Quantum Computation is Equivalent to Standard Quantum Computation | Adiabatic quantum computation has recently attracted attention in the physics and computer science communities, but its computational power was unknown. We describe an efficient adiabatic simulation of any given quantum algorithm, which implies that the adiabatic computation model and the conventional quantum computati... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2307733 | math/0405343 | 2004-05-18 | Empirical margin distributions and bounding the generalization error of combined classifiers | We prove new probabilistic upper bounds on generalization error of complex classifiers that are combinations of simple classifiers. Such combinations could be implemented by neural networks or by voting methods of combining the classifiers, such as boosting and bagging. The bounds are in terms of the empirical distribu... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
26877405 | math/0405340 | 2004-05-18 | Some Local Measures of Complexity of Convex Hulls and Generalization Bounds | We investigate measures of complexity of function classes based on continuity moduli of Gaussian and Rademacher processes. For Gaussian processes, we obtain bounds on the continuity modulus on the convex hull of a function class in terms of the same quantity for the class itself. We also obtain new bounds on generaliza... | [
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
27612241 | cond-mat/0405402 | 2004-05-18 | Heterogeneous Dynamics of Coarsening Systems | We show by means of experiments, theory and simulations, that the slow dynamics of coarsening systems displays dynamic heterogeneity similar to that observed in glass-forming systems. We measure dynamic heterogeneity via novel multi-point functions which quantify the emergence of dynamic, as opposed to static, correlat... | [
"cond-mat.stat-mech",
"cond-mat.soft"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p mayer_1",
"name": "Peter Mayer",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "h bissig_1",
"name": "Hugo Bissig",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num... | null |
15945690 | hep-th/0405152 | 2004-05-18 | Entanglement Entropy and Quantum Field Theory | We carry out a systematic study of entanglement entropy in relativistic quantum field theory. This is defined as the von Neumann entropy S_A=-Tr rho_A log rho_A corresponding to the reduced density matrix rho_A of a subsystem A. For the case of a 1+1-dimensional critical system, whose continuum limit is a conformal fie... | [
"hep-th",
"cond-mat.stat-mech",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17895205 | astro-ph/0405369 | 2004-05-19 | The type IIn supernova 1994W: evidence for the explosive ejection of a circumstellar envelope | We present and analyse spectra of the Type IIn supernova 1994W obtained between 18 and 203 days after explosion. During the luminous phase (first 100 d) the line profiles are composed of three major components: (i) narrow P-Cygni lines with the absorption minima at -700 km/s; (ii) broad emission lines with BVZI ~4000 k... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
36196418 | cond-mat/0405457 | 2004-05-19 | Solution of the 2-star model of a network | The p-star model or exponential random graph is among the oldest and best-known of network models. Here we give an analytic solution for the particular case of the 2-star model, which is one of the most fundamental of exponential random graphs. We derive expressions for a number of quantities of interest in the model a... | [
"cond-mat.stat-mech",
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17483315 | astro-ph/0405364 | 2004-05-19 | The Parkes multibeam pulsar survey: IV. Discovery of 180 pulsars and parameters for 281 previously known pulsars | The Parkes multibeam pulsar survey has led to the discovery of more than 700 pulsars. In this paper, we provide timing solutions, flux densities and pulse profiles for 180 of these new discoveries. Two pulsars, PSRs J1736-2843 and J1847-0130 have rotational periods P > 6s and are therefore among the slowest rotating ra... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15167809 | math/0405392 | 2004-05-20 | The density of rational points in curves and surfaces | Let $X$ be an algebraic variety, defined over the rationals. This paper gives upper bounds for the number of rational points on $X$, with height at most $B$, for the case in which $X$ is a curve or a surface. In the latter case one excludes from the counting function those points that lie on lines in the surface. The b... | [
"math.NT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
15257780 | astro-ph/0502046 | 2004-05-20 | Progenitors of Core-Collapse Supernovae | The progenitors of core-collapse supernovae are stars with an initial mass greater than about 8M(sun). Understanding the evolution of these stars is necessary to comprehend the evolution and differences between supernovae. We have constructed new and unique opacity tables to increase model accuracy during the latest st... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1312914 | cond-mat/0405519 | 2004-05-21 | On the Construction of Particle Distributions with Specified Single and Pair Densities | We discuss necessary conditions for the existence of probability distribution on particle configurations in $d$-dimensions i.e. a point process, compatible with a specified density $\rho$ and radial distribution function $g({\bf r})$. In $d=1$ we give necessary and sufficient criteria on $\rho g({\bf r})$ for the exist... | [
"cond-mat.stat-mech",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11168538 | math/0405404 | 2004-05-21 | Invariants of unipotent transformations acting on noetherian relatively free algebras | The classical theorem of Weitzenboeck states that the algebra of invariants of a single unipotent transformation $g$ in $GL_m(K)$ acting on the polynomial algebra $K[x_1,...,x_m]$ over a field $K$ of characteristic 0 is finitely generated. Recently the author and C.K. Gupta have started the study of the algebra of $g$-... | [
"math.RA",
"math.AC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119398474 | cond-mat/0405528 | 2004-05-21 | Spintronics: Fundamentals and applications | Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent advances and well-established results. The primary focus is on the basic physical principles underlyin... | [
"cond-mat.other"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119159008 | math/0405431 | 2004-05-22 | Propagation of singularities for the wave equation on manifolds with corners | In this paper we describe the propagation of smooth (C^\infty) and Sobolev singularities for the wave equation on smooth manifolds with corners M equipped with a Riemannian metric g. That is, for X=MxR, P=D_t^2-\Delta_M, and u locally in H^1 solving Pu=0 with homogeneous Dirichlet or Neumann boundary conditions, we sho... | [
"math.AP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
20837147 | quant-ph/0405137 | 2004-05-24 | Squeezing in the audio gravitational wave detection band | We demonstrate the generation of broad-band continuous-wave optical squeezing down to 200Hz using a below threshold optical parametric oscillator (OPO). The squeezed state phase was controlled using a noise locking technique. We show that low frequency noise sources, such as seed noise, pump noise and detuning fluctuat... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17191987 | math/0405448 | 2004-05-24 | Gorenstein toric Fano varieties | We investigate Gorenstein toric Fano varieties by combinatorial methods using the notion of a reflexive polytope which appeared in connection to mirror symmetry. The paper contains generalisations of tools and previously known results for nonsingular toric Fano varieties. As applications we obtain new classification re... | [
"math.AG",
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119471185 | hep-ph/0405243 | 2004-05-24 | Little Hierarchy, Little Higgses, and a Little Symmetry | Little Higgs theories are an attempt to address the little hierarchy problem, i.e., the tension between the naturalness of the electroweak scale and the precision measurements showing no evidence for new physics up to 5-10 TeV. In little Higgs theories, the Higgs mass-squareds are protected to the one-loop order from t... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
33700469 | quant-ph/0405146 | 2004-05-25 | Fast quantum algorithm for numerical gradient estimation | Given a blackbox for f, a smooth real scalar function of d real variables, one wants to estimate the gradient of f at a given point with n bits of precision. On a classical computer this requires a minimum of d+1 blackbox queries, whereas on a quantum computer it requires only one query regardless of d. The number of b... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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