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 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|
3191061 | cond-mat/9705087 | 1997-05-09 | Scaling in stock market data: stable laws and beyond | The concepts of scale invariance, self-similarity and scaling have been fruitfully applied to the study of price fluctuations in financial markets. After a brief review of the properties of stable Levy distributions and their applications to market data we indicate the shortcomings of such models and describe the trunc... | [
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"adap-org",
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"nlin.AO",
"q-fin.ST"
] | null | [
"target.author.publication_history.key_reference"
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17056116 | hep-th/9705091 | 1997-05-13 | A Two-Loop Test of M(atrix) Theory | We consider the scattering of two Dirichlet zero-branes in M(atrix) theory. Using the formulation of M(atrix) theory in terms of ten-dimensional super Yang-Mills theory dimensionally reduced to $(0+1)$-dimensions, we obtain the effective (velocity dependent) potential describing these particles. At one-loop we obtain t... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119481366 | cond-mat/9705135 | 1997-05-14 | Anisotropic dynamical scaling in a spin model with competing interactions | Results are presented for the kinetics of domain growth of a two-dimensional Ising spin model with competing interactions quenched from a disordered to a striped phase. The domain growth exponent are $\beta=1/2$ and $\beta=1/3$ for single-spin-flip and spin-exchange dynamics, as found in previous simulations. However t... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
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{
"author_id": "e cirillo_1",
"name": "Emilio [\"N.\",\"M.\"] Cirillo",
"publication_history": null,
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{
"author_id": "g gonnella_1",
"name": "Giuseppe Gonnella",
"publication_history": null,
"h_index": null,
... | null |
10084683 | math/9705225 | 1997-05-15 | Choiceless polynomial time | Turing machines define polynomial time (PTime) on strings but cannot deal with structures like graphs directly, and there is no known, easily computable string encoding of isomorphism classes of structures. Is there a computation model whose machines do not distinguish between isomorphic structures and compute exactly ... | [
"math.LO",
"cs.LO"
] | null | [
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{
"author_id": "a blass_1",
"name": "Andreas Blass",
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{
"author_id": "y gurevich_1",
"name": "Yuri Gurevich",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
9743403 | quant-ph/9705031 | 1997-05-16 | Reliable Quantum Computers | The new field of quantum error correction has developed spectacularly since its origin less than two years ago. Encoded quantum information can be protected from errors that arise due to uncontrolled interactions with the environment. Recovery from errors can work effectively even if occasional mistakes occur during th... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17087724 | astro-ph/9705136 | 1997-05-19 | Iron fluorescence from within the innermost stable orbit of black hole accretion disks | The fluorescent iron Ka line is a powerful observational probe of the inner regions of black holes accretion disks. Previous studies have assumed that only material outside the radius of marginal stability can contribute to the observed line emission. Here, we show that fluorescence by material inside the radius of mar... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12146566 | cond-mat/9705182 | 1997-05-19 | Stochastic learning in a neural network with adapting synapses | We consider a neural network with adapting synapses whose dynamics can be analitically computed. The model is made of $N$ neurons and each of them is connected to $K$ input neurons chosen at random in the network. The synapses are $n$-states variables which evolve in time according to Stochastic Learning rules; a paral... | [
"cond-mat.dis-nn",
"q-bio"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g lattanzi_1",
"name": "Gianluca Lattanzi",
"publication_history": null,
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{
"author_id": "g nardulli_1",
"name": "Giuseppe Nardulli",
"publication_history": null,
"h_index": null,
"num_papers... | null |
119479348 | cond-mat/9705181 | 1997-05-19 | Coexistence and Phase Separation in Sheared Complex Fluids | We demonstrate how to construct dynamic phase diagrams for complex fluids that undergo transitions under flow, in which the conserved composition variable and the broken-symmetry order parameter (nematic, smectic, crystalline, etc.) are coupled to shear rate. Our construction relies on a selection criterion, the existe... | [
"cond-mat.soft"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18698107 | physics/9705023 | 1997-05-19 | Artificial Neural Networks for Solving Ordinary and Partial Differential Equations | We present a method to solve initial and boundary value problems using artificial neural networks. A trial solution of the differential equation is written as a sum of two parts. The first part satisfies the boundary (or initial) conditions and contains no adjustable parameters. The second part is constructed so as not... | [
"physics.comp-ph",
"comp-gas",
"nlin.CG",
"quant-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119334411 | cond-mat/9705183 | 1997-05-19 | Stochastic differential equations for non-linear hydrodynamics | We formulate the stochastic differential equations for non-linear hydrodynamic fluctuations. The equations incorporate the random forces through a random stress tensor and random heat flux as in the Landau and Lifshitz theory. However, the equations are non-linear and the random forces are non-Gaussian. We provide expl... | [
"cond-mat.stat-mech"
] | null | [
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] | [] | [
{
"author_id": "p español_1",
"name": "Pep Español",
"publication_history": null,
"h_index": null,
"num_papers": null,
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}
] | null |
7626766 | quant-ph/9705036 | 1997-05-21 | Data processing in quantum information theory | The strengthened data processing inequality have been proved. The general theory have been illustrated on the simple example. | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a allahverdyan_1",
"name": "Armen [\"E.\"] Allahverdyan",
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{
"author_id": "d saakian_1",
"name": "David [\"B.\"] Saakian",
"publication_history": null,
"h_index": nul... | null |
17295247 | hep-th/9705172 | 1997-05-22 | Brane dynamics for treatment of cosmic strings and vortons | This course provides a self contained introduction to the general theory of relativistic brane models, of the category that includes point particle, string, and membrane representations for phenomena that can be considered as being confined to a worldsheet of the corresponding dimension (respectively one, two, and thre... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14373903 | cond-mat/9705230 | 1997-05-22 | Fluid particle dynamics: a synthesis of dissipative particle dynamics and smoothed particle dynamics | We present a generalization of dissipative particle dynamics that includes shear forces between particles. The new algorithm has the same structure as the (isothermal) smoothed particle dynamics algorithm, except that it conserves angular momentum and includes thermal fluctuations consistently with the principles of eq... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p español_1",
"name": "Pep Español",
"publication_history": null,
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}
] | null |
18907494 | astro-ph/9705194 | 1997-05-23 | Gravitational Lensing By Spiral Galaxies | We study gravitational lensing by spiral galaxies, using realistic models consisting of halo, disk, and bulge components combined to produce a flat rotation curve. Proper dynamical normalization of the models is critical because a disk requires less mass than a spherical halo to produce the same rotation curve---a face... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14967794 | math/9705210 | 1997-05-23 | On a reverse form of the Brascamp-Lieb inequality | We prove a reverse form of the multidimensional Brascamp-Lieb inequality. Our method also gives a new way to derive the Brascamp-Lieb inequality and is rather convenient for the study of equality cases. | [
"math.FA"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17158494 | astro-ph/9705201 | 1997-05-24 | A Non-Gray Theory of Extrasolar Giant Planets and Brown Dwarfs | We present the results of a new series of non-gray calculations of the atmospheres, spectra, colors, and evolution of extrasolar giant planets (EGPs) and brown dwarfs for effective temperatures below 1300 K. This theory encompasses most of the mass/age parameter space occupied by substellar objects and is the first spe... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14837035 | astro-ph/9705226 | 1997-05-28 | Self-Similar Magnetocentrifugal Disk Winds with Cylindrical Asymptotics | We construct a two-parameter family of models for self-collimated, radially self-similar magnetized outflows from accretion disks. A flow at zero initial poloidal speed leaves the surface of a rotating disk and is accelerated and redirected toward the pole by helical magnetic fields threading the disk. At large distanc... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118824832 | quant-ph/9705052 | 1997-05-28 | Stabilizer Codes and Quantum Error Correction | Controlling operational errors and decoherence is one of the major challenges facing the field of quantum computation and other attempts to create specified many-particle entangled states. The field of quantum error correction has developed to meet this challenge. A group-theoretical structure and associated subclass o... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
119020495 | cond-mat/9705300 | 1997-05-29 | The two-dimensional quantum Heisenberg antiferromagnet: effective Hamiltonian approach to the thermodynamics | In this paper we present an extensive study of the thermodynamic properties of the two-dimensional quantum Heisenberg antiferromagnet on the square lattice; the problem is tackled by the pure-quantum self-consistent harmonic approximation, previously applied to quantum spin systems with easy-plane anisotropies, modeled... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a cuccoli_1",
"name": "Alessandro Cuccoli",
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},
{
"author_id": "v tognetti_1",
"name": "Valerio Tognetti",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
364141 | hep-ph/9705467 | 1997-05-30 | Semileptonic B decays to excited charmed mesons | Exclusive semileptonic B decays into excited charmed mesons are investigated at order $\Lambda_{QCD}/m_Q$ in the heavy quark effective theory. Differential decay rates for each helicity state of the four lightest excited $D$ mesons ($D_1$, $D_2^*$, $D_0^*$, and $D_1^*$) are examined. At zero recoil, $\Lambda_{QCD}/m_Q$... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119527283 | cond-mat/9706014 | 1997-06-02 | Phase Separation in Electronic Models for Manganites | The Kondo lattice Hamiltonian with ferromagnetic Hund's coupling as a model for manganites is investigated. The classical limit for the spin of the (localized) $t_{2g}$ electrons is analyzed on lattices of dimension 1,2,3 and $\infty$ using several numerical methods. The phase diagram at low temperature is presented. A... | [
"cond-mat.str-el"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
5976402 | quant-ph/9706009 | 1997-06-03 | Bell-Kochen-Specker theorem: A proof with 18 vectors | We present a ``state-independent'' proof of the Bell-Kochen-Specker theorem using only 18 four-dimensional vectors, which is a record for this kind of proof. This set of vectors contains subsets which allow us to develop a ``state-specific'' proof with 10 vectors (also a record) and a ``probabilistic'' proof with 7 vec... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16524601 | chao-dyn/9706004 | 1997-06-03 | Entropy potential and Lyapunov exponents | According to a previous conjecture, spatial and temporal Lyapunov exponents of chaotic extended systems can be obtained from derivatives of a suitable function: the entropy potential. The validity and the consequences of this hypothesis are explored in detail. The numerical investigation of a continuous-time model prov... | [
"chao-dyn",
"nlin.CD"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "s lepri_2",
"name": "Stefano Lepri",
"publication_history": null,
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},
{
"author_id": "a politi_1",
"name": "Antonio Politi",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
121595443 | nucl-ex/9706001 | 1997-06-04 | Abundance of Delta Resonances in 58Ni+58Ni Collisions between 1 and 2 AGeV | Charged pion spectra measured in 58Ni-58Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Delta resonances. The transverse momentum spectra of pions are well reproduced by adding the pions originating from the Delta-resonance decay to the component of thermal p... | [
"nucl-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b hong_4",
"name": "B. Hong",
"publication_history": null,
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},
{
"author_id": "n herrmann_2",
"name": "Norbert Herrmann",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
119337495 | cond-mat/9706045 | 1997-06-05 | A New Transport Regime in the Quantum Hall Effect | This paper describes an experimental identification and characterization of a new low temperature transport regime near the quantum Hall-to-insulator transition. In this regime, a wide range of transport data are compactly described by a simple phenomenological form which, on the one hand, is inconsistent with either q... | [
"cond-mat.mes-hall"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "d shahar_0",
"name": "Dan Shahar",
"publication_history": null,
"h_index": null,
"num_papers": null,
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},
{
"author_id": "m hilke_0",
"name": "Michael Hilke",
"publication_history": null,
"h_index": null,
"num_papers": null,
"nu... | null |
3265631 | cmp-lg/9706004 | 1997-06-05 | An Empirical Comparison of Probability Models for Dependency Grammar | This technical report is an appendix to Eisner (1996): it gives superior experimental results that were reported only in the talk version of that paper. Eisner (1996) trained three probability models on a small set of about 4,000 conjunction-free, dependency-grammar parses derived from the Wall Street Journal section o... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3262717 | cmp-lg/9706003 | 1997-06-05 | Three New Probabilistic Models for Dependency Parsing: An Exploration | After presenting a novel O(n^3) parsing algorithm for dependency grammar, we develop three contrasting ways to stochasticize it. We propose (a) a lexical affinity model where words struggle to modify each other, (b) a sense tagging model where words fluctuate randomly in their selectional preferences, and (c) a generat... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2555276 | cond-mat/9706080 | 1997-06-09 | Metastates in the Hopfield model in the replica symmetric regime | We study the finite dimensional marginals of the Gibbs measure in the Hopfield model at low temperature when the number of patterns, $M$, is proportional to the volume with a sufficiently small proportionality constant $\a>0$. It is shown that even when a single pattern is selected (by a magnetic field or by conditioni... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16255701 | astro-ph/9706084 | 1997-06-09 | Radio scintillation of gamma-ray-burst afterglows | Stars twinkle to the eye through atmospheric turbulence, but planets, because of their larger angular size, do not. Similarly, scintillation due to the local interstellar medium will modulate the radio flux of gamma-ray-burst afterglows and may permit indirect measurements of their angular sizes. The amplitude of refra... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
497031 | cmp-lg/9706006 | 1997-06-09 | Mistake-Driven Learning in Text Categorization | Learning problems in the text processing domain often map the text to a space whose dimensions are the measured features of the text, e.g., its words. Three characteristic properties of this domain are (a) very high dimensionality, (b) both the learned concepts and the instances reside very sparsely in the feature spac... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
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{
"author_id": "i dagan_1",
"name": "Ido Dagan",
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},
{
"author_id": "y karov_0",
"name": "Yael Karov",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_cit... | null |
4397390 | astro-ph/9706095 | 1997-06-10 | The optically-dark side of galaxy formation | In this letter, we estimate how much starlight was absorbed by dust and released in the infrared during the formation of galaxies. New constraints are set on this so-far hidden history by the recent detection of the Cosmic Infrared Background (CIB) built up from the accumulated light of faint sources (and revisited her... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2278340 | cmp-lg/9706011 | 1997-06-10 | Applying Reliability Metrics to Co-Reference Annotation | Studies of the contextual and linguistic factors that constrain discourse phenomena such as reference are coming to depend increasingly on annotated language corpora. In preparing the corpora, it is important to evaluate the reliability of the annotation, but methods for doing so have not been readily available. In thi... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r passonneau_1",
"name": "R. Passonneau",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
18161757 | physics/9706015 | 1997-06-10 | The Analysis of Data from Continuous Probability Distributions | Conventional statistics begins with a model, and assigns a likelihood of obtaining any particular set of data. The opposite approach, beginning with the data and assigning a likelihood to any particular model, is explored here for the case of points drawn randomly from a continuous probability distribution. A scalar fi... | [
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
59986 | cmp-lg/9706010 | 1997-06-10 | Exemplar-Based Word Sense Disambiguation: Some Recent Improvements | In this paper, we report recent improvements to the exemplar-based learning approach for word sense disambiguation that have achieved higher disambiguation accuracy. By using a larger value of $k$, the number of nearest neighbors to use for determining the class of a test example, and through 10-fold cross validation t... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
122795114 | hep-ex/9706012 | 1997-06-12 | Color Coherent Radiation in Multijet Events from ppbar Collisions at sqrt(s) = 1.8 TeV | We report on a study of color coherence effects in ppbar collisions at a center of mass energy sqrt(s)=1.8 TeV. The data were collected with the D0 detector during the 1992-1993 run of the Fermilab Tevatron Collider. We observe the presence of initial-to-final state color interference with the spatial correlations betw... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b abbott_2",
"name": "B. Abbott",
"publication_history": null,
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},
{
"author_id": "m abolins_1",
"name": "Maris [\"A.\"] Abolins",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
1621022 | quant-ph/9706033 | 1997-06-13 | Quantum Mechanics helps in searching for a needle in a haystack | Quantum mechanics can speed up a range of search applications over unsorted data. For example imagine a phone directory containing N names arranged in completely random order. To find someone's phone number with a probability of 50%, any classical algorithm (whether deterministic or probabilistic) will need to access t... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
14638994 | astro-ph/9706128 | 1997-06-13 | The Age Of Globular Clusters In Light Of Hipparcos: Resolving the Age Problem? | We review five independent techniques which are used to set the distance scale to globular clusters, including subdwarf main sequence fitting utilizing the recent Hipparcos parallax catalogue. These data together all indicate that globular clusters are farther away than previously believed, implying a reduction in age ... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17812711 | hep-th/9706110 | 1997-06-13 | Mirror symmetry and Exact Solution of 4D N=2 Gauge Theories I | Using geometric engineering in the context of type II strings, we obtain exact solutions for the moduli space of the Coulomb branch of all N=2 gauge theories in four dimensions involving products of SU gauge groups with arbitrary number of bi-fundamental matter for chosen pairs, as well as an arbitrary number of fundam... | [
"hep-th",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118945201 | astro-ph/9706144 | 1997-06-15 | Very High Energy Observations of PSR B1951+32 | PSR B1951+32 is a gamma-ray pulsar detected by the Energetic Gamma Ray Experiment Telescope (EGRET) and identified with the 39.5 ms radio pulsar in the supernova remnant CTB 80. The EGRET data shows no evidence for a spectral turnover. Here we report on the first observations of PSR B1951+32 beyond 30 GeV. The observat... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11977065 | astro-ph/9706147 | 1997-06-16 | A CMB Polarization Primer | We present a pedagogical and phenomenological introduction to the study of cosmic microwave background (CMB) polarization to build intuition about the prospects and challenges facing its detection. Thomson scattering of temperature anisotropies on the last scattering surface generates a linear polarization pattern on t... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119009953 | cond-mat/9706182 | 1997-06-17 | Time Dependent Floquet Theory and Absence of an Adiabatic Limit | Quantum systems subject to time periodic fields of finite amplitude, lambda, have conventionally been handled either by low order perturbation theory, for lambda not too large, or by exact diagonalization within a finite basis of N states. An adiabatic limit, as lambda is switched on arbitrarily slowly, has been assume... | [
"cond-mat",
"chao-dyn",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2558 | cmp-lg/9706021 | 1997-06-17 | An Efficient Distribution of Labor in a Two Stage Robust Interpretation Process | Although Minimum Distance Parsing (MDP) offers a theoretically attractive solution to the problem of extragrammaticality, it is often computationally infeasible in large scale practical applications. In this paper we present an alternative approach where the labor is distributed between a more restrictive partial parse... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "8738472",
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] | [
{
"author_id": "c rosé_1",
"name": "Carolyn [\"Penstein\"] Rosé",
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{
"author_id": "a lavie_1",
"name": "Alon Lavie",
"publication_history": null,
"h_index": null,
"num_papers": n... | null |
1345 | cmp-lg/9706022 | 1997-06-17 | Three Generative, Lexicalised Models for Statistical Parsing | In this paper we first propose a new statistical parsing model, which is a generative model of lexicalised context-free grammar. We then extend the model to include a probabilistic treatment of both subcategorisation and wh-movement. Results on Wall Street Journal text show that the parser performs at 88.1/87.5% consti... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
12188307 | cond-mat/9706190 | 1997-06-18 | Monte Carlo simulation of ice models | We propose a number of Monte Carlo algorithms for the simulation of ice models and compare their efficiency. One of them, a cluster algorithm for the equivalent three colour model, appears to have a dynamic exponent close to zero, making it particularly useful for simulations of critical ice models. We have performed e... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
13049397 | astro-ph/9706199 | 1997-06-19 | Redshifts of the Gravitational Lenses B1422+231 and PG1115+080 | B1422+231 and PG1115+080 are gravitational lens systems producing quadruple QSO images where there is real promise that time delays can constrain the Hubble constant. In addition, the lensing galaxies are both part of groups which can play an important role in modelling the lens potential. This article reports redshift... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
32772471 | astro-ph/9706198 | 1997-06-19 | Measuring cosmological parameters with galaxy surveys | We assess the accuracy with which future galaxy surveys can measure cosmological parameters by deriving a handy approximation that we validate numerically. We find that galaxy surveys are quite complementary to future Cosmic Microwave Background (CMB) experiments. By breaking parameter degeneracies of the Planck CMB sa... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17747781 | cond-mat/9706213 | 1997-06-20 | Dissipative Particle Dynamics with energy conservation | Dissipative particle dynamics (DPD) does not conserve energy and this precludes its use in the study of thermal processes in complex fluids. We present here a generalization of DPD that incorporates an internal energy and a temperature variable for each particle. The dissipation induced by the dissipative forces betwee... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "p español_1",
"name": "Pep Español",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
7793347 | astro-ph/9706250 | 1997-06-25 | The Scalar, Vector and Tensor Contributions to CMB anisotropies from Cosmic Defects | Recent work has emphasised the importance of vector and tensor contributions to the large scale microwave anisotropy fluctuations produced by cosmic defects. In this paper we provide a general discussion of these contributions, and how their magnitude is constrained by the fundamental assumptions of causality, scaling,... | [
"astro-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "n turok_1",
"name": "Neil Turok",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "u pen_1",
"name": "Ue-li Pen",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citat... | null |
18948008 | astro-ph/9706252 | 1997-06-25 | The supermassive black hole of M87 and the kinematics of its associated gaseous disk | We have obtained long-slit observations of the circumnuclear region of M87 at three different locations, with a spatial sampling of 0.028" using the Faint Object Camera f/48 spectrograph on board HST. These data allow us to determine the rotation curve of the inner ~1" of the ionized gas disk in [OII]3727 to a distance... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1439479 | quant-ph/9706062 | 1997-06-27 | Quantum Computation and Decision Trees | Many interesting computational problems can be reformulated in terms of decision trees. A natural classical algorithm is to then run a random walk on the tree, starting at the root, to see if the tree contains a node n levels from the root. We devise a quantum mechanical algorithm that evolves a state, initially locali... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14964407 | cond-mat/9706277 | 1997-06-27 | String-like Clusters and Cooperative Motion in a Model Glass-Forming Liquid | A large-scale molecular dynamics simulation is performed on a glass-forming Lennard-Jones mixture to determine the nature of dynamical heterogeneities which arise in this model fragile liquid. We observe that the most mobile particles exhibit a cooperative motion in the form of string-like paths (``strings'') whose mea... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17704884 | astro-ph/9706293 | 1997-06-30 | Galactic Kinematics of Cepheids from Hipparcos Proper Motions | The Hipparcos proper motions of 220 galactic Cepheids, together with relevant ground-based photometry, have been analysed. The effects of galactic rotation are very clearly seen. Mean values of the Oort constants, A = 14.82 +/- 0.84 km/s/kpc, and B = -12.37 +/- 0.64 km/s/kpc, and of the angular velocity of circular rot... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119353511 | cond-mat/9707012 | 1997-07-01 | Discrete scale invariance and complex dimensions | We discuss the concept of discrete scale invariance and how it leads to complex critical exponents (or dimensions), i.e. to the log-periodic corrections to scaling. After their initial suggestion as formal solutions of renormalization group equations in the seventies, complex exponents have been studied in the eighties... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119342408 | hep-th/9707012 | 1997-07-01 | D-Branes and Quotient Singularities of Calabi-Yau Fourfolds | We investigate a (0,2) gauge theory realized on the world volume of the type IIB D1-brane at the singular point of a Calabi-Yau fourfold. It is argued that the gauge anomaly can be canceled via coupling to the R-R chiral bosons in bulk IIB string. We find that for a generic choice of the Fayet-Iliopoulos parameters on ... | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119516923 | cond-mat/9707019 | 1997-07-02 | Vanishing of the negative-sign problem of quantum Monte Carlo simulations in one-dimensional frustrated spin systems | The negative-sign problem in one-dimensional frustrated quantum spin systems is solved. We can remove negative signs of the local Boltzmann weights by using a dimer basis that has the spin-reversal symmetry. Validity of this new basis is checked in a general frustrated double-spin-chain system, namely the J_0-J_1-J_2-J... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
372343 | astro-ph/9707024 | 1997-07-02 | The Evolution of the Elemental Abundances in the Gas and Dust Phases of the Galaxy | We present models for the evolution of the elemental abundances in the gas and dust phases of the interstellar medium (ISM) of our Galaxy by generalizing standard models for its dynamical and chemical evolution. In these models, the stellar birthrate history is determined by the infall rate of primordial gas, and by it... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
569 | cmp-lg/9707001 | 1997-07-03 | Reluctant Paraphrase: Textual Restructuring under an Optimisation Model | This paper develops a computational model of paraphrase under which text modification is carried out reluctantly; that is, there are external constraints, such as length or readability, on an otherwise ideal text, and modifications to the text are necessary to ensure conformance to these constraints. This problem is an... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m dras_1",
"name": "Mark Dras",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
5134218 | astro-ph/9707041 | 1997-07-03 | Deflection of ultra high energy cosmic rays by the galactic magnetic field: from the sources to the detector | We report the results of 3D simulations of the trajectories of ultra-high energy protons and Fe nuclei (with energies $E = 4 \times 10^{19}$ and $2.5 \times 10^{20} eV$) propagating through the galactic magnetic field from the sources to the detector. A uniform distribution of anti-particles is backtracked from the det... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
7736176 | gr-qc/9707008 | 1997-07-03 | Gravity on parallelizable manifold | General relativity postulates that the gravity field is defined on a Riemannian manifold. The field equations are $R^\mu_\nu = 0$ i.e. Ricci's curvature tensor vanishes. The field equations have to be augmented by natural physical requirements like orientability, time orientability and existence of a spinorial structur... | [
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9861085 | cond-mat/9707048 | 1997-07-04 | Rate theory for correlated processes: Double-jumps in adatom diffusion | We study the rate of activated motion over multiple barriers, in particular the correlated double-jump of an adatom diffusing on a missing-row reconstructed Platinum (110) surface. We develop a Transition Path Theory, showing that the activation energy is given by the minimum-energy trajectory which succeeds in the dou... | [
"cond-mat.mtrl-sci"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j jacobsen_4",
"name": "Joachim Jacobsen",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "k jacobsen_2",
"name": "Karsten [\"Wedel\"] Jacobsen",
"publication_history": null,
"h_index": null,
"... | null |
14059225 | astro-ph/9707093 | 1997-07-08 | The Formation of Galactic Disks | We study the population of galactic disks expected in current hierarchical clustering models for structure formation. A rotationally supported disk with exponential surface density profile is assumed to form with a mass and angular momentum which are fixed fractions of those of its surrounding dark halo. We assume that... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11113728 | cmp-lg/9707002 | 1997-07-08 | Automatic Detection of Text Genre | As the text databases available to users become larger and more heterogeneous, genre becomes increasingly important for computational linguistics as a complement to topical and structural principles of classification. We propose a theory of genres as bundles of facets, which correlate with various surface cues, and arg... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b kessler_0",
"name": "Brett Kessler",
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},
{
"author_id": "g nunberg_0",
"name": "Geoffrey Nunberg",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
122615381 | hep-ex/9707018 | 1997-07-08 | A Measurement of the Total Cross Section for $e^{+}e^{-}\to hadrons$ at $\sqrt{s}$=10.52 GeV | Using the CLEO detector at the Cornell Electron Storage Ring, we have made a measurement of R=sigma(e+e- ->hadrons)/sigma(e+e- ->mu+mu-) =3.56+/-0.01+/-0.07 at ECM=10.52 GeV. This implies a value for the strong coupling constant of alpha_s(10.52 GeV)=0.20+/-0.01+/-0.06, or alpha_s(M_Z)=0.13+/-0.005+/-0.03. | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r ammar_1",
"name": "Raymond [\"G.\"] Ammar",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p baringer_1",
"name": "Philip Baringer",
"publication_history": null,
"h_index": null,
"num_papers... | null |
11199664 | quant-ph/9707021 | 1997-07-09 | Fault-tolerant quantum computation by anyons | A two-dimensional quantum system with anyonic excitations can be considered as a quantum computer. Unitary transformations can be performed by moving the excitations around each other. Measurements can be performed by joining excitations in pairs and observing the result of fusion. Such computation is fault-tolerant by... | [
"quant-ph",
"cond-mat.mes-hall",
"hep-th"
] | null | [
"target.author.publication_history.key_reference",
"target.key_reference"
] | null | null | null |
118916392 | cond-mat/9707123 | 1997-07-11 | Finite-Size Scaling of the Ground State Parameters of the Two-Dimensional Heisenberg Model | The ground state parameters of the two-dimensional S=1/2 antiferromagnetic Heisenberg model are calculated using the Stochastic Series Expansion quantum Monte Carlo method for L*L lattices with L up to 16. The finite-size results for the energy E, the sublattice magnetization M, the long-wavelength susceptibility chi_p... | [
"cond-mat.str-el",
"hep-lat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119383386 | cond-mat/9707147 | 1997-07-14 | Stochastic Effects in Physical Systems | A tutorial review is given of some developments and applications of stochastic processes from the point of view of the practicioner physicist. The index is the following: 1.- Introduction 2.- Stochastic Processes 3.- Transient Stochastic Dynamics 4.- Noise in Dynamical Systems 5.- Noise Effects in Spatially Extended Sy... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m miguel_2",
"name": "Maxi [\"San\"] Miguel",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "r toral_1",
"name": "Raúl Toral",
"publication_history": null,
"h_index": null,
"num_papers": null,... | null |
3175396 | quant-ph/9707031 | 1997-07-16 | Quantum Automata and Quantum Grammars | To study quantum computation, it might be helpful to generalize structures from language and automata theory to the quantum case. To that end, we propose quantum versions of finite-state and push-down automata, and regular and context-free grammars. We find analogs of several classical theorems, including pumping lemma... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119372020 | hep-lat/9707022 | 1997-07-17 | Exactly massless quarks on the lattice | It is suggested that the fermion determinant for a vector-like gauge theory with strictly massless quarks can be represented on the lattice as $\det{{1+V}\over 2}$, where $V=X(X^\dagger X)^{-1/2}$ and $X$ is the Wilson-Dirac lattice operator with a negative mass term. There is no undesired doubling and no need for any ... | [
"hep-lat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118863885 | cond-mat/9707200 | 1997-07-18 | Topological correlations in soap froths | Correlation in two-dimensional soap froth is analysed with an effective potential for the first time. Cells with equal number of sides repel (with linear correlation) while cells with different number of sides attract (with NON-bilinear) for nearest neighbours, which cannot be explained by the maximum entropy argument.... | [
"cond-mat.dis-nn"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "k szeto_1",
"name": "Kwok [\"Yip\"] Szeto",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "t aste_1",
"name": "Tomaso Aste",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
14742069 | cond-mat/9707186 | 1997-07-18 | Phase Separation Driven by External Fluctuations | The influence of external fluctuations in phase separation processes is analysed. These fluctuations arise from random variations of an external control parameter. A linear stability analysis of the homogeneous state shows that phase separation dynamics can be induced by external noise. The spatial structure of the noi... | [
"cond-mat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j garcía-ojalvo_1",
"name": "Jordi García-Ojalvo",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "a lacasta_0",
"name": "Ana [\"M.\"] Lacasta",
"publication_history": null,
"h_index": null,
"n... | null |
5909725 | hep-th/9707176 | 1997-07-21 | Non-Abelian BPS Monopoles in N=4 Gauged Supergravity | We study static, spherically symmetric, and purely magnetic solutions of SU(2) $\times$ SU(2) gauge supergravity in four dimensions. A systematic analysis of the supersymmetry conditions reveals solutions which preserve 1/8 of the supersymmetries and are characterized by a BPS-monopole-type gauge field and a globally h... | [
"hep-th",
"gr-qc",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119389708 | cond-mat/9707221 | 1997-07-21 | The Loop Algorithm | A review of the Loop Algorithm, its generalizations, and its relation to some other Monte Carlo techniques is given. The loop algorithm is a Quantum Monte Carlo procedure which employs nonlocal changes of worldline configurations, determined by local stochastic decisions. It is based on a formulation of quantum models ... | [
"cond-mat.str-el",
"cond-mat.stat-mech",
"hep-lat",
"physics.comp-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16699338 | quant-ph/9707047 | 1997-07-24 | Quantum Disentanglement and Computation | Entanglement is essential for quantum computation. However, disentanglement is also necessary. It can be achieved without the need of classical operations (measurements). Two examples are analyzed: the discrete Fourier transform and error correcting codes. | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
36899575 | cond-mat/9707273 | 1997-07-25 | Glassy dynamics and aging in an exactly solvable spin model | We introduce a simple two-dimensional spin model with short-range interactions which shows glassy behavior despite a Hamiltonian which is completely homogeneous and possesses no randomness. We solve exactly for both the static partition function of the model and the distribution of energy barriers, giving us the equili... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119104099 | physics/9707021 | 1997-07-26 | Dissipative Dynamics of Collisionless Nonlinear Alfven Wave Trains | The nonlinear dynamics of collisionless Alfven trains, including resonant particle effects is studied using the kinetic nonlinear Schroedinger (KNLS) equation model. Numerical solutions of the KNLS reveal the dynamics of Alfven waves to be sensitive to the sense of polarization as well as the angle of propagation with ... | [
"physics.space-ph",
"adap-org",
"astro-ph",
"nlin.AO",
"nlin.PS",
"patt-sol",
"physics.plasm-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "m medvedev_1",
"name": "Mikhail [\"V.\"] Medvedev",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "p diamond_2",
"name": "Patrick [\"H\"] Diamond",
"publication_history": null,
"h_index": null,
... | null |
6691990 | cmp-lg/9707017 | 1997-07-28 | Stochastic phonological grammars and acceptability | In foundational works of generative phonology it is claimed that subjects can reliably discriminate between possible but non-occurring words and words that could not be English. In this paper we examine the use of a probabilistic phonological parser for words to model experimentally-obtained judgements of the acceptabi... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j coleman_2",
"name": "John [\"S.\"] Coleman",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "j pierrehumbert_1",
"name": "Janet [\"B.\"] Pierrehumbert",
"publication_history": null,
"h_index": nu... | null |
14738722 | hep-th/9707244 | 1997-07-30 | Confinement and Strings in MQCD | We study aspects of confinement in the M theory fivebrane version of QCD (MQCD). We show heavy quarks are confined in hadrons (which take the form of membrane-fivebrane bound states) for N=1 and softly broken N=2 SU(Nc) MQCD. We explore and clarify the transition from the exotic physics of the latter to the standard ph... | [
"hep-th",
"hep-lat",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119101580 | cond-mat/9707325 | 1997-07-30 | Equilibrium free energy differences from nonequilibrium measurements: a master equation approach | It has recently been shown that the Helmholtz free energy difference between two equilibrium configurations of a system may be obtained from an ensemble of finite-time (nonequilibrium) measurements of the work performed in switching an external parameter of the system. Here this result is established, as an identity, w... | [
"cond-mat.stat-mech",
"physics.chem-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14110169 | alg-geom/9708001 | 1997-08-01 | Localization of virtual classes | We prove a localization formula for virtual fundamental classes in the context of torus equivariant perfect obstruction theories. As an application, the higher genus Gromov-Witten invariants of projective space are expressed as graph sums of tautological integrals over moduli spaces of stable pointed curves (generalizi... | [
"alg-geom",
"math.AG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
10994659 | astro-ph/9708018 | 1997-08-03 | Recovery of the Power Spectrum of Mass Fluctuations from Observations of the Lyman-alpha Forest | We present a method to recover the shape and amplitude of the power spectrum of mass fluctuations, P(k), from observations of the high redshift \lya forest. The method is motivated by the physical picture of the \lya forest that has emerged from hydrodynamic cosmological simulations and related semi-analytic models, wh... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1966448 | astro-ph/9708060 | 1997-08-07 | Gravitational Waves from Coalescing Black Hole MACHO Binaries | If MACHOs are black holes of mass about 0.5 solar mass, they must have been formed in the early universe when the temperature was about 1 GeV. We estimate that in this case in our galaxy's halo out to about 50kpc there exist about half billion black hole binaries whose coalescence times are comparable to the age of the... | [
"astro-ph",
"gr-qc"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
266032050 | cmp-lg/9708002 | 1997-08-07 | Natural Language Generation in Healthcare: Brief Review | Good communication is vital in healthcare, both among healthcare professionals, and between healthcare professionals and their patients. And well-written documents, describing and/or explaining the information in structured databases may be easier to comprehend, more edifying and even more convincing, than the structur... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3265796 | cmp-lg/9708003 | 1997-08-07 | Structure and Ostension in the Interpretation of Discourse Deixis | This paper examines demonstrative pronouns used as deictics to refer to the interpretation of one or more clauses. Although this usage is frowned upon in style manuals (for example Strunk and White (1959) state that ``This. The pronoun 'this', referring to the complete sense of a preceding sentence or clause, cannot al... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16128238 | quant-ph/9708016 | 1997-08-08 | Quantum Algorithms Revisited | Quantum computers use the quantum interference of different computational paths to enhance correct outcomes and suppress erroneous outcomes of computations. A common pattern underpinning quantum algorithms can be identified when quantum computation is viewed as multi-particle interference. We use this approach to revie... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6517208 | quant-ph/9708019 | 1997-08-11 | Quantum Entanglement and the Communication Complexity of the Inner Product Function | We consider the communication complexity of the binary inner product function in a variation of the two-party scenario where the parties have an a priori supply of particles in an entangled quantum state. We prove linear lower bounds for both exact protocols, as well as for protocols that determine the answer with boun... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
56341034 | quant-ph/9708021 | 1997-08-12 | Space, time, parallelism and noise requirements for reliable quantum computing | Quantum error correction methods use processing power to combat noise. The noise level which can be tolerated in a fault-tolerant method is therefore a function of the computational resources available, especially the size of computer and degree of parallelism. I present an analysis of error correction with block codes... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
6558978 | hep-lat/9708025 | 1997-08-13 | Lattice-Constrained Parametrizations of Form Factors for Semileptonic and Rare Radiative B Decays | We describe the form factors for semileptonic B to rho l nu and radiative B to K* gamma decays with just two parameters and the two form factors for semileptonic B to pi l nu decays with three parameters. The parametrizations are constrained by lattice results and are consistent with heavy quark symmetry, kinematic con... | [
"hep-lat"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "u collaboration_1",
"name": "Ukqcd Collaboration",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
},
{
"author_id": "l debbio_1",
"name": "Luigi [\"Del\"] Debbio",
"publication_history": null,
"h_index": null,
"... | null |
14525052 | physics/9708016 | 1997-08-13 | The persistence of viscous effects in the overlap region, and the mean velocity in turbulent pipe and channel flows | We argue that important elements of the dynamics of wall-bounded flows reside at the wall-normal position $y_p^+$ corresponding to the peak of the Reynolds shear stress. Specializing to pipe and channel flows, we show that the mean momentum balance in the neighborhood of $y_p^+$ is distinct in character from those in t... | [
"physics.flu-dyn",
"chao-dyn",
"cond-mat.stat-mech",
"nlin.CD"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14423335 | astro-ph/9708150 | 1997-08-15 | The Cluster of Galaxies Surrounding Cygnus A | We report optical imaging and spectroscopy of 41 galaxies in a 22 arcmin square region surrounding Cygnus A. The results show that there is an extensive rich cluster associated with Cygnus A of Abell richness at least 1 and possibly as high as 4. The velocity histogram has two peaks, one centered on Cygnus A, and a mor... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
11587536 | astro-ph/9708143 | 1997-08-15 | A new measure for cosmic shear | We consider here a new statistical measure for cosmic shear, the aperture mass Map, which is defined as a spatially filtered projected density field and which can be measured directly from the image distortions of high-redshift galaxies. By selecting an appropriate spatial filter function, the dispersion of the apertur... | [
"astro-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2480472 | cmp-lg/9708010 | 1997-08-18 | Similarity-Based Methods For Word Sense Disambiguation | We compare four similarity-based estimation methods against back-off and maximum-likelihood estimation methods on a pseudo-word sense disambiguation task in which we controlled for both unigram and bigram frequency. The similarity-based methods perform up to 40% better on this particular task. We also conclude that eve... | [
"cmp-lg",
"cs.CL"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "i dagan_1",
"name": "Ido Dagan",
"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,
"num_cit... | null |
55186801 | hep-ex/9708026 | 1997-08-18 | Search For New Particles in Multijet Final States at the Tevatron | We present the latest results of the searches for new particles in hadronic final states performed in proton-antiproton collisions at a center of mass energy of 1.8 TeV. The large data samples collected with the CDF and D0 detectors at the Tevatron collider between 1992 and 1995 allow searches for low cross section phe... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t dorigo_1",
"name": "Tommaso Dorigo",
"publication_history": null,
"h_index": null,
"num_papers": null,
"num_citations": null
}
] | null |
119403470 | quant-ph/9708032 | 1997-08-19 | Purifying two-bit quantum gates and joint measurements in cavity QED | Using a cavity QED setup we show how to implement a particular joint measurement on two atoms in a fault tolerant way. Based on this scheme, we illustrate how to realize quantum communication over a noisy channel when local operations are subject to errors. We also present a scheme to perform and purify a universal two... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119503164 | adap-org/9708006 | 1997-08-19 | Emergence of Cooperation and Organization in an Evolutionary Game | A binary game is introduced and analysed. N players have to choose one of the two sides independently and those on the minority side win. Players uses a finite set of ad hoc strategies to make their decision, based on the past record. The analysing power is limited and can adapt when necessary. Interesting cooperation ... | [
"adap-org",
"cond-mat.stat-mech",
"nlin.AO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
54823349 | cond-mat/9708172 | 1997-08-21 | Attenuation of polarization echoes in NMR: A study of the emergence of dynamical irreversibility in many-body quantum systems | The reversal of the time evolution of the local polarization in an interacting spin system involves a sign change of the effective dipolar Hamiltonian which refocuses the 'spin diffusion' process generating a polarization echo. Here, the attenuation of these echo amplitudes as a function of evolution time is presented ... | [
"cond-mat"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
18437178 | math/9708207 | 1997-08-21 | Brownian Motion in a Weyl Chamber, Non-Colliding Particles, and Random Matrices | Let $n$ particles move in standard Brownian motion in one dimension, with the process terminating if two particles collide. This is a specific case of Brownian motion constrained to stay inside a Weyl chamber; the Weyl group for this chamber is $A_{n-1}$, the symmetric group. For any starting positions, we compute a de... | [
"math.RT",
"math.PR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9239670 | hep-th/9708117 | 1997-08-21 | New String Theories in Six Dimensions via Branes at Orbifold Singularities | We present several classes of new 6d string theories which arise via branes at orbifold singularities. They have compact moduli spaces, associated with tensor multiplets, given by Weyl alcoves of non-Abelian groups. We discuss T-duality and Matrix model applications upon compactification. | [
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
117976001 | dg-ga/9708011 | 1997-08-22 | Contact Topology and Hydrodynamics | We draw connections between the field of contact topology and the study of Beltrami fields in hydrodynamics on Riemannian manifolds in dimension three. We demonstrate an equivalence between Reeb fields (vector fields which preserve a transverse nowhere-integrable plane field) up to scaling and rotational Beltrami field... | [
"dg-ga",
"math.DG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
263872027 | cond-mat/9708200 | 1997-08-26 | The Physics and Mathematics of the Second Law of Thermodynamics | The essential postulates of classical thermodynamics are formulated, from which the second law is deduced as the principle of increase of entropy in irreversible adiabatic processes that take one equilibrium state to another. The entropy constructed here is defined only for equilibrium states and no attempt is made to ... | [
"cond-mat.soft",
"math-ph",
"math.MP"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16343765 | hep-ph/9708464 | 1997-08-26 | Hard underlying event correction to inclusive jet cross sections | Jets observed in hadron-hadron scattering contain a contribution from the underlying event that is produced by spectator interactions taking place incoherently with the major parton-parton collision, due to the extended composite structure of the colliding hadrons. Using a recent measurement of the double parton intera... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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