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119463373
cond-mat/0207296
2002-07-11
About the Almeida-Thouless transition line in the Sherrington-Kirkpatrick mean field spin glass mode
We consider the Sherrington-Kirkpatrick model and we prove that the thermodynamic limit of the quenched free energy per site is strictly greater than the corresponding replica symmetric approximation, for all values of the temperature and of the magnetic field below the Almeida-Thouless line. This is based on recent ri...
[ "cond-mat.dis-nn" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8786139
cs/0207049
2002-07-11
More Precise Yet Efficient Type Inference for Logic Programs
Type analyses of logic programs which aim at inferring the types of the program being analyzed are presented in a unified abstract interpretation-based framework. This covers most classical abstract interpretation-based type analyzers for logic programs, built on either top-down or bottom-up interpretation of the progr...
[ "cs.SE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15484679
astro-ph/0207290
2002-07-13
Chandra temperature and metallicity maps of the Perseus cluster core
We present temperature and metallicity maps of the Perseus cluster core obtained with the Chandra X-ray Observatory. We find an overall temperature rise from ~3.0 keV in the core to ~5.5 keV at 120 kpc and a metallicity profile that rises slowly from ~0.5 solar to ~0.6 solar inside 60 kpc, but drops to \~0.4 solar at 1...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14062189
cs/0207059
2002-07-15
Value Based Argumentation Frameworks
This paper introduces the notion of value-based argumentation frameworks, an extension of the standard argumentation frameworks proposed by Dung, which are able toshow how rational decision is possible in cases where arguments derive their force from the social values their acceptance would promote.
[ "cs.AI" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14257671
math/0207126
2002-07-15
On the Number of Embeddings of Minimally Rigid Graphs
Rigid frameworks in some Euclidian space are embedded graphs having a unique local realization (up to Euclidian motions) for the given edge lengths, although globally they may have several. We study the number of distinct planar embeddings of minimally rigid graphs with $n$ vertices. We show that, modulo planar rigid m...
[ "math.MG", "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17806037
astro-ph/0207319
2002-07-15
Neutrino trapping and accretion models for Gamma-Ray Bursts
Many models of Gamma Ray Bursts invoke a central engine consisting of a black hole of a few solar masses accreting matter from a disk at a rate of a fraction to a few solar masses per second. Popham et al. and Narayan et al. have shown that, for Mdot >~ 0.1 Msun/s, accretion proceeds via neutrino cooling and neutrinos ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
34962224
astro-ph/0207338
2002-07-16
E/B decomposition of finite pixelized CMB maps
Separation of the E and B components of a microwave background polarization map or a weak lensing map is an essential step in extracting science from it, but when the map covers only part of the sky and/or is pixelized, this decomposition cannot be done perfectly. We present a method for decomposing an arbitrary sky ma...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3127171
nlin/0207029
2002-07-16
Lagrangian Statistics and Temporal Intermittency in a Shell Model of Turbulence
We study the statistics of single particle Lagrangian velocity in a shell model of turbulence. We show that the small scale velocity fluctuations are intermittent, with scaling exponents connected to the Eulerian structure function scaling exponents. The observed reduced scaling range is interpreted as a manifestation ...
[ "nlin.CD" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
919625
cond-mat/0207387
2002-07-16
Efficient Immunization Strategies for Computer Networks and Populations
We present an effective immunization strategy for computer networks and populations with broad and, in particular, scale-free degree distributions. The proposed strategy, acquaintance immunization, calls for the immunization of random acquaintances of random nodes (individuals). The strategy requires no knowledge of th...
[ "cond-mat.dis-nn", "q-bio.PE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11969249
astro-ph/0207340
2002-07-16
Statistical properties of the energy release in emerging and evolving active region
The formation and evolution of active regions is an inherently complex phenomenon. Magnetic fields generated at the base of the convection zone follow a chaotic evolution before reaching the solar surface. In this article, we use a 2-D probabilistic Cellular Automaton (CA) to model the statistical properties of the mag...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l vlahos_1", "name": "Loukas Vlahos", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t fragos_1", "name": "Tassos Fragos", "publication_history": null, "h_index": null, "num_papers": null, ...
null
118961123
astro-ph/0207347
2002-07-16
The Cosmological Constant and Dark Energy
Physics invites the idea that space contains energy whose gravitational effect approximates that of Einstein's cosmological constant, Lambda; nowadays the concept is termed dark energy or quintessence. Physics also suggests the dark energy could be dynamical, allowing the arguably appealing picture that the dark energy...
[ "astro-ph", "gr-qc", "hep-ph", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16383845
quant-ph/0207088
2002-07-16
Confinement-Higgs transition in a disordered gauge theory and the accuracy threshold for quantum memory
We study the +/- J random-plaquette Z_2 gauge model (RPGM) in three spatial dimensions, a three-dimensional analog of the two-dimensional +/- J random-bond Ising model (RBIM). The model is a pure Z_2 gauge theory in which randomly chosen plaquettes (occuring with concentration p) have couplings with the ``wrong sign'' ...
[ "quant-ph", "cond-mat.stat-mech", "hep-lat", "hep-th" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "36673677", "num_citations": null }, { "corpus_id": "14323875", "num_citations": null } ]
[ { "author_id": "c wang_183", "name": "Chenyang Wang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j harrington_1", "name": "James [\"William\"] Harrington", "publication_history": null, "h_index": null, "n...
null
122789554
hep-ex/0207041
2002-07-17
Observation of B -> D^{(*)} K^- K^{0(*)} decays
The B -> D^{(*)} K^- K^{(*)0} decays have been observed for the first time. The branching fractions of the B -> D^{(*)} K^- K^{(*)0} decay modes are measured. Significant signals are found for the B -> D^{(*)} K^- K^{*0} and B^- -> D^0 K^- K^0_S decay modes. The invariant mass and polarization distributions for the K^-...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118552595
astro-ph/0207389
2002-07-18
300x Faster Matlab using MatlabMPI
The true costs of high performance computing are currently dominated by software. Addressing these costs requires shifting to high productivity languages such as Matlab. MatlabMPI is a Matlab implementation of the Message Passing Interface (MPI) standard and allows any Matlab program to exploit multiple processors. Mat...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j kepner_1", "name": "Jeremy Kepner", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s ahalt_1", "name": "Stanley [\"C.\"] Ahalt", "publication_history": null, "h_index": null, "num_papers": n...
null
15204081
astro-ph/0207409
2002-07-18
The Type Ia Supernova 1999aw: a Probable 1999aa-like Event In a Low-Luminosity Host Galaxy
SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search (NGSS) project. This luminous, slow-declining (Delta m_{15} (B) = 0.81 \pm 0.03) Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15060348
math-ph/0207023
2002-07-18
A precise definition of reduction of partial differential equations
We give a comprehensive analysis of interrelations between the basic concepts of the modern theory of symmetry (classical and non-classical) reductions of partial differential equations. Using the introduced definition of reduction of differential equations we establish equivalence of the non-classical (conditional sym...
[ "math-ph", "math.AP", "math.MP", "nlin.SI" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1357994
cs/0207071
2002-07-19
A Polynomial Translation of Logic Programs with Nested Expressions into Disjunctive Logic Programs: Preliminary Report
Nested logic programs have recently been introduced in order to allow for arbitrarily nested formulas in the heads and the bodies of logic program rules under the answer sets semantics. Nested expressions can be formed using conjunction, disjunction, as well as the negation as failure operator in an unrestricted fashio...
[ "cs.AI", "cs.LO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "d pearce_1", "name": "David Pearce", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v sarsakov_0", "name": "Vladimir Sarsakov", "publication_history": null, "h_index": null, "num_papers": null...
null
262668884
astro-ph/0207413
2002-07-19
Representations of celestial coordinates in FITS
In Paper I, Greisen & Calabretta (2002) describe a generalized method for assigning physical coordinates to FITS image pixels. This paper implements this method for all spherical map projections likely to be of interest in astronomy. The new methods encompass existing informal FITS spherical coordinate conventions and ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
54884394
quant-ph/0207119
2002-07-19
Overhead and noise threshold of fault-tolerant quantum error correction
Fault tolerant quantum error correction (QEC) networks are studied by a combination of numerical and approximate analytical treatments. The probability of failure of the recovery operation is calculated for a variety of CSS codes, including large block codes and concatenated codes. Recent insights into the syndrome ext...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
62197264
math/0207175
2002-07-20
My Favorite Integer Sequences
This paper gives a brief description of the author's database of integer sequences, now over 35 years old, together with a selection of a few of the most interesting sequences in the table. Many unsolved problems are mentioned.
[ "math.CO", "math.NT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8347083
math/0207184
2002-07-21
Asymmetric Multiple Description Lattice Vector Quantizers
We consider the design of asymmetric multiple description lattice quantizers that cover the entire spectrum of the distortion profile, ranging from symmetric or balanced to successively refinable. We present a solution to a labeling problem, which is an important part of the construction, along with a general design pr...
[ "math.CO" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "11775633", "num_citations": null } ]
[ { "author_id": "s diggavi_1", "name": "Suhas [\"N.\"] Diggavi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n sloane_0", "name": "N. [\"J.\",\"A.\"] Sloane", "publication_history": null, "h_index": null, "...
null
7611045
math/0207199
2002-07-22
Mixing times of the biased card shuffling and the asymmetric exclusion process
Consider the following method of card shuffling. Start with a deck of $N$ cards numbered 1 through N. Fix a parameter $p$ between 0 and 1. In this model a ``shuffle'' consists of uniformly selecting a pair of adjacent cards and then flipping a coin that is heads with probability p. If the coin comes up heads then we ar...
[ "math.PR", "math-ph", "math.MP" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "14386342", "num_citations": null } ]
[ { "author_id": "i benjamini_1", "name": "Itai Benjamini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n berger_7", "name": "Noam Berger", "publication_history": null, "h_index": null, "num_papers": null, ...
null
3077909
math/0207197
2002-07-22
On Single-Deletion-Correcting Codes
This paper gives a brief survey of binary single-deletion-correcting codes. The Varshamov-Tenengolts codes appear to be optimal, but many interesting unsolved problems remain. The connections with shift-register sequences also remain somewhat mysterious.
[ "math.CO", "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2412746
cs/0207078
2002-07-22
Randomized Approximation Schemes for Cuts and Flows in Capacitated Graphs
We improve on random sampling techniques for approximately solving problems that involve cuts and flows in graphs. We give a near-linear-time construction that transforms any graph on n vertices into an O(n\log n)-edge graph on the same vertices whose cuts have approximately the same value as the original graph's. In t...
[ "cs.DS", "cs.DM" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13515010
quant-ph/0207131
2002-07-22
Efficient Quantum Algorithms for Estimating Gauss Sums
We present an efficient quantum algorithm for estimating Gauss sums over finite fields and finite rings. This is a natural problem as the description of a Gauss sum can be done without reference to a black box function. With a reduction from the discrete logarithm problem to Gauss sum estimation we also give evidence t...
[ "quant-ph", "cs.DM", "math.NT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3265293
cs/0207076
2002-07-22
Introducing Dynamic Behavior in Amalgamated Knowledge Bases
The problem of integrating knowledge from multiple and heterogeneous sources is a fundamental issue in current information systems. In order to cope with this problem, the concept of mediator has been introduced as a software component providing intermediate services, linking data resources and application programs, an...
[ "cs.PL", "cs.DB", "cs.LO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e bertino_1", "name": "Elisa Bertino", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b catania_0", "name": "Barbara Catania", "publication_history": null, "h_index": null, "num_papers": null,...
null
118180098
cond-mat/0207553
2002-07-23
System size coherence resonance
We show the existence of a system size coherence resonance effect for an ensemble of globally coupled excitable systems. Namely, we demonstrate numerically that the regularity in the signal emitted by an ensemble of globally coupled Fitzhugh-Nagumo systems, under excitation by independent noise sources, is optimal for ...
[ "cond-mat" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r toral_1", "name": "Raúl Toral", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c mirasso_1", "name": "Claudio [\"R.\"] Mirasso", "publication_history": null, "h_index": null, "num_papers": n...
null
118986320
quant-ph/0207134
2002-07-23
Performing joint measurements and transformations on several qubits by operating on a single control qubit
An n-qubit quantum register can in principle be completely controlled by operating on a single qubit that interacts with the register via an appropriate fixed interaction. We consider a hypothetical system consisting of n spin-1/2 nuclei that interact with an electron spin via a magnetic interaction. We describe algori...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "d janzing_1", "name": "Dominik Janzing", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t decker_1", "name": "Thomas Decker", "publication_history": null, "h_index": null, "num_papers": null, ...
null
118455135
quant-ph/0207137
2002-07-24
Quantum random walks in optical lattices
We propose an experimental realization of discrete quantum random walks using neutral atoms trapped in optical lattices. The random walk is taking place in position space and experimental implementation with present day technology --even using existing set-ups-- seems feasible. We analyze the influence of possible impe...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "w dür_1", "name": "Wolfgang Dür", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r raussendorf_1", "name": "Robert Raussendorf", "publication_history": null, "h_index": null, "num_papers": nul...
null
117049199
cond-mat/0207587
2002-07-24
Comment on ``Experimental violations of the second law of thermodynamics for small systems and short timescales''
The experimental verification of the Fluctuation Theorem by Wang et al. is not a violation but even a confirmation of the second law, resulting from their observations in a proper interpretation.
[ "cond-mat" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "t nieuwenhuizen_1", "name": "Theo [\"M.\"] Nieuwenhuizen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a allahverdyan_1", "name": "Armen [\"E.\"] Allahverdyan", "publication_history": null, "h_...
null
3266217
cs/0207082
2002-07-24
Dynamic Generators of Topologically Embedded Graphs
We provide a data structure for maintaining an embedding of a graph on a surface (represented combinatorially by a permutation of edges around each vertex) and computing generators of the fundamental group of the surface, in amortized time O(log n + log g(log log g)^3) per update on a surface of genus g; we can also te...
[ "cs.DS" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15393806
hep-ph/0207314
2002-07-25
Comparison of SUSY mass spectrum calculations
We provide a comparison of the results of four SUSY mass spectrum calculations in mSUGRA: Isajet, SuSpect, SoftSusy, and SPheno. In particular, we focus on the high tan(beta) and focus point regions, where the differences in the results are known to be large.
[ "hep-ph", "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b allanach_1", "name": "Benjamin [\"C.\"] Allanach", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s kraml_1", "name": "Sabine Kraml", "publication_history": null, "h_index": null, "num_paper...
null
11513384
cs/0207084
2002-07-25
Paraconsistent Reasoning via Quantified Boolean Formulas,I: Axiomatising Signed Systems
Signed systems were introduced as a general, syntax-independent framework for paraconsistent reasoning, that is, non-trivialised reasoning from inconsistent information. In this paper, we show how the family of corresponding paraconsistent consequence relations can be axiomatised by means of quantified Boolean formulas...
[ "cs.LO", "cs.CC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "p besnard_1", "name": "Philippe Besnard", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "t schaub_1", "name": "Torsten Schaub", "publication_history": null, "h_index": null, "num_papers": null...
null
11383822
hep-th/0207244
2002-07-26
Conifold Transitions and Five-Brane Condensation in M-Theory on Spin(7) Manifolds
We conjecture a topology changing transition in M-theory on a non-compact asymptotically conical Spin(7) manifold, where a 5-sphere collapses and a CP(2) bolt grows. We argue that the transition may be understood as the condensation of M5-branes wrapping the 5-sphere. Upon reduction to ten dimensions, it has a physical...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118902180
quant-ph/0207149
2002-07-26
Generalizations of entanglement based on coherent states and convex sets
Unentangled pure states on a bipartite system are exactly the coherent states with respect to the group of local transformations. What aspects of the study of entanglement are applicable to generalized coherent states? Conversely, what can be learned about entanglement from the well-studied theory of coherent states? W...
[ "quant-ph", "cond-mat" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118776894
astro-ph/0207604
2002-07-27
Microlensing optical depth towards the Galactic bulge from MOA observations during 2000 with Difference Image Analysis
We analyze the data of the gravitational microlensing survey carried out by by the MOA group during 2000 towards the Galactic Bulge (GB). Our observations are designed to detect efficiently high magnification events with faint source stars and short timescale events, by increasing the the sampling rate up to 6 times pe...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18854606
astro-ph/0207615
2002-07-29
The iron Kalpha Compton Shoulder in transmitted and reflected spectra
We calculate the Equivalent Widht of the Core and the centroid energy and relative flux of the 1st order Compton Shoulder of the iron Kalpha emission line from neutral matter. The calculations are performed with Monte Carlo simulations. We explore a large range of column densities for both transmitted and reflected spe...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7186659
math-ph/0207041
2002-07-29
Entropy production rates of bistochastic strictly contractive quantum channels on a matrix algebra
We derive, for a bistochastic strictly contractive quantum channel on a matrix algebra, a relation between the contraction rate and the rate of entropy production. We also sketch some applications of our result to the statistical physics of irreversible processes and to quantum information processing.
[ "math-ph", "cond-mat.stat-mech", "math.MP", "math.OA", "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m raginsky_1", "name": "Maxim Raginsky", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
5778430
hep-ex/0207097
2002-07-29
Study of Inclusive Production of Charmonium Mesons in B Decay
The inclusive production of charmonium mesons in B meson decay has been studied in a 20.3 fb$^{-1}$ data set collected by the BaBar experiment operating at the $\Upsilon(4S)$ resonance. Branching fractions have been measured for the inclusive production of the charmonium mesons $J/\psi$, $\psi(2S)$, $\chi_{c1}$, and $\...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119533191
hep-ph/0207355
2002-07-30
AcerDET: a particle level fast simulation and recosntruction package for phenomenological studies on high pT physics at LHC
This paper documents package for the particle level fast simulation. The package is designed to complete the AcerMC generator framework with the easy-to-use simulation and reconstruction algorithms. The package provides, starting from list of particles in the event, the list of reconstructed jets, isolated electrons, m...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16466810
physics/0207129
2002-07-31
In-Vivo NMR of Hyperpolarized Helium-3 in the Human Lung at Very Low Magnetic Fields
We present NMR measurements of the diffusion of hyperpolarized helium-3 in the human lung performed at fields much lower than those of conventional MRI scanners. The measurements were made on standing subjects using homebuilt apparatus operating at 3 mT. Oxygen-limited transverse relaxation (T2 up to 15-35 s) could be ...
[ "physics.med-ph", "physics.ins-det" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "c bidinosti_1", "name": "Christopher [\"P.\"] Bidinosti", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j choukeife_1", "name": "Jamal Choukeife", "publication_history": null, "h_index": null, ...
null
119520981
astro-ph/0208008
2002-07-31
Discovery of GRB 020405 and its Late Red Bump
We present the discovery of GRB 020405 made with the Inter-Planetary Network (IPN). With a duration of 60 s, the burst appears to be a typical long duration event. We observed the 75-square acrminute IPN error region with the Mount Stromlo Observatory's 50-inch robotic telescope and discovered a transient source which ...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "1047372", "num_citations": null }, { "corpus_id": "14404316", "num_citations": null }, { "corpus_id": "15874686", "num_citations": null }, { "corpus_id": "14238537", "num_citations": null }, { "corpus_id": "6939747", "num_citations": null }, ...
[ { "author_id": "p price_2", "name": "Paul [\"A.\"] Price", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p price_2", "name": "Paul [\"A.\"] Price", "publication_history": null, "h_index": null, "num_papers":...
null
462543
astro-ph/0207664
2002-07-31
Stable clustering, the halo model and nonlinear cosmological power spectra
We present the results of a large library of cosmological N-body simulations, using power-law initial spectra. The nonlinear evolution of the matter power spectra is compared with the predictions of existing analytic scaling formulae based on the work of Hamilton et al. The scaling approach has assumed that highly nonl...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16157859
astro-ph/0207667
2002-07-31
Model Atmosphere Analysis of Two Very Cool White Dwarfs
A detailed analysis of the very cool white dwarfs SDSS 1337+00 and LHS 3250 is presented. Model atmosphere calculations with improved collision-induced absorptions by molecular hydrogen indicate that a pure hydrogen composition can be ruled out, and that the strong infrared absorption observed in these cool stars is be...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
117057129
quant-ph/0207183
2002-07-31
Computational Model for the One-Way Quantum Computer: Concepts and Summary
The one-way quantum computer (QCc) is a universal scheme of quantum computation consisting only of one-qubit measurements on a particular entangled multi-qubit state, the cluster state. The computational model underlying the QCc is different from the quantum logic network model and it is based on different constituents...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r raussendorf_1", "name": "Robert Raussendorf", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h briegel_1", "name": "Hans [\"J.\"] Briegel", "publication_history": null, "h_index": null, "num...
null
10895494
math/0208004
2002-08-01
Packing Lines, Planes, etc.: Packings in Grassmannian Space
This paper addresses the question: how should N n-dimensional subspaces of m-dimensional Euclidean space be arranged so that they are as far apart as possible? The results of extensive computations for modest values of N, n, m are described, as well as a reformulation of the problem that was suggested by these computat...
[ "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
9798970
astro-ph/0208035
2002-08-01
Monte Carlo Study of Supernova Neutrino Spectra Formation
The neutrino flux and spectra formation in a supernova core is studied by using a Monte Carlo code. The dominant opacity contribution for nu_mu and nu_tau is elastic scattering on nucleons. In addition we switch on or off a variety of processes which allow for the exchange of energy or the creation and destruction of n...
[ "astro-ph", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5789761
cs/0208001
2002-08-01
Classification of Random Boolean Networks
We provide the first classification of different types of Random Boolean Networks (RBNs). We study the differences of RBNs depending on the degree of synchronicity and determinism of their updating scheme. For doing so, we first define three new types of RBNs. We note some similarities and differences between different...
[ "cs.CC", "cs.DM", "math.DS", "nlin.CG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6458682
math/0208002
2002-08-01
A Group-Theoretic Framework for the Construction of Packings in Grassmannian Spaces
By using totally isotropic subspaces in an orthogonal space Omega^{+}(2i,2), several infinite families of packings of 2^k-dimensional subspaces of real 2^i-dimensional space are constructed, some of which are shown to be optimal packings. A certain Clifford group underlies the construction and links this problem with B...
[ "math.CO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
117588744
quant-ph/0208014
2002-08-02
Quantum Communication and Decoherence
In this contribution we will give a brief overview on the methods used to overcome decoherence in quantum communication protocols. We give an introduction to quantum error correction, entanglement purification and quantum cryptography. It is shown that entanglement purification can be used to create ``private entanglem...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "3059636", "num_citations": null }, { "corpus_id": "16407184", "num_citations": null } ]
[ { "author_id": "h aschauer_1", "name": "Hans Aschauer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h briegel_1", "name": "Hans [\"J.\"] Briegel", "publication_history": null, "h_index": null, "num_papers"...
null
16313205
math/0208027
2002-08-04
Finiteness of rigid cohomology with coefficients
We prove that for any field k of characteristic p>0, any separated scheme X of finite type over k, and any overconvergent F-isocrystal E over X, the rigid cohomology H^i(X, E) and rigid cohomology with compact supports H^i_c(X,E) are finite dimensional vector spaces. We also establish Poincare duality and the Kunneth f...
[ "math.AG", "math.NT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8630080
astro-ph/0208100
2002-08-05
Probing Dark Energy with Supernovae: Exploiting Complementarity with the Cosmic Microwave Background
A primary goal for cosmology and particle physics over the coming decade will be to unravel the nature of the dark energy that drives the accelerated expansion of the Universe. In particular, determination of the equation-of-state of dark energy, w equivalent p/rho, and its time variation, dw/dz, will be critical for d...
[ "astro-ph", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16219343
nlin/0208004
2002-08-05
Local 4/5-Law and Energy Dissipation Anomaly in Turbulence
A strong local form of the ``4/3-law'' in turbulent flow has been proved recently by Duchon and Robert for a triple moment of velocity increments averaged over both a bounded spacetime region and separation vector directions, and for energy dissipation averaged over the same spacetime region. Under precisely stated hyp...
[ "nlin.CD" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1555069
astro-ph/0208083
2002-08-05
The Consequences of assuming m=0 for Global Model-fitting
A recent re-analysis of Whole Earth Telescope observations of GD 358 obtained in 1990 suggests that asteroseismology of additional DBV white dwarfs can lead to independent constraints on the important, but poorly determined, ^{12}C(alpha,gamma)^{16}O nuclear reaction rate. Data exist for several other DBV white dwarfs,...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1229833
astro-ph/0208095
2002-08-05
Detection of compact objects by means of gravitational lensing in binary systems
We consider the gravitational magnification of light for binary systems containing two compact objects: white dwarfs, a white dwarf and a neutron star or a white dwarf and a black hole. Light curves of the flares of the white dwarf caused by this effect were built in analytical approximations and by means of numerical ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119048780
hep-ex/0208007
2002-08-06
Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System
We present a series of measurements based on K -> pi+pi- and K -> pi0pi0 decays collected in 1996-1997 by the KTeV experiment (E832) at Fermilab. We compare these four K -> pipi decay rates to measure the direct CP violation parameter Re(e'/e) = (20.7 +- 2.8) x 10^-4. We also test CPT symmetry by measuring the relative...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6100630
hep-ph/0208047
2002-08-06
Proton driver optimization for new generation neutrino superbeams to search for sub-leading numu->nue oscillations ($\theta_{13}$ angle)
We perform a systematic study of particle production and neutrino yields for different incident proton energies $E_p$ and baselines $L$, with the aim of optimizing the parameters of a neutrino beam for the investigation of $\theta_{13}$-driven neutrino oscillations in the $\Delta m^2$ range allowed by Superkamiokande r...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a ferrari_5", "name": "Alfredo Ferrari", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a rubbia_1", "name": "André Rubbia", "publication_history": null, "h_index": null, "num_papers": null, ...
null
119002004
astro-ph/0208145
2002-08-07
Massive Stars in the Arches Cluster
We present and use new spectra and narrow-band images, along with previously published broad-band images, of stars in the Arches cluster to extract photometry, astrometry, equivalent width, and velocity information. The data are interpreted with a wind/atmosphere code to determine stellar temperatures, luminosities, ma...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
206987
cond-mat/0208146
2002-08-07
Spin and Conductance-Peak-Spacing Distributions in Large Quantum Dots: A Density Functional Theory Study
We use spin-density-functional theory to study the spacing between conductance peaks and the ground-state spin of 2D model quantum dots with up to 200 electrons. Distributions for different ranges of electron number are obtained in both symmetric and asymmetric potentials. The even/odd effect is pronounced for small sy...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16298753
nlin/0208012
2002-08-07
On the Global Dynamics of the Anisotropic Manev Problem
We study the global flow of the anisotropic Manev problem, which describes the planar motion of two bodies under the influence of an anisotropic Newtonian potential with a relativistic correction term. We first find all the heteroclinic orbits between equilibrium solutions. Then we generalize the Poincare'-Melnikov met...
[ "nlin.CD" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "18446086", "num_citations": null }, { "corpus_id": "17830275", "num_citations": null } ]
[ { "author_id": "f diacu_1", "name": "Florin Diacu", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m santoprete_1", "name": "Manuele Santoprete", "publication_history": null, "h_index": null, "num_papers": nu...
null
15452802
cond-mat/0208131
2002-08-07
Dynamic asset trees and portfolio analysis
The minimum spanning tree, based on the concept of ultrametricity, is constructed from the correlation matrix of stock returns and provides a meaningful economic taxonomy of the stock market. In order to study the dynamics of this asset tree we characterize it by its normalized length and by the mean occupation layer, ...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j onnela_1", "name": "Jukka-Pekka Onnela", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a chakraborti_2", "name": "Anirban Chakraborti", "publication_history": null, "h_index": null, "num_pa...
null
1470534
quant-ph/0208043
2002-08-07
Quantum Circuits with Unbounded Fan-out
We demonstrate that the unbounded fan-out gate is very powerful. Constant-depth polynomial-size quantum circuits with bounded fan-in and unbounded fan-out over a fixed basis (denoted by QNCf^0) can approximate with polynomially small error the following gates: parity, mod[q], And, Or, majority, threshold[t], exact[q], ...
[ "quant-ph", "cs.CC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18333126
astro-ph/0208168
2002-08-07
Clusters of galaxies in the local universe
We use a matched filter algorithm to find and study clusters in both N-body simulations artificially populated with galaxies and the 2MASS survey. In addition to numerous checks of the matched filter algorithm, we present results on the halo multiplicity function and the cluster number function. For a subset of our ide...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "11226913", "num_citations": null }, { "corpus_id": "14794043", "num_citations": null }, { "corpus_id": "19037664", "num_citations": null }, { "corpus_id": "17246775", "num_citations": null }, { "corpus_id": "119411795", "num_citations": null ...
[ { "author_id": "c kochanek_1", "name": "Christopher [\"S.\"] Kochanek", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m white_10", "name": "Martin White", "publication_history": null, "h_index": null, "num_p...
null
8894913
astro-ph/0208138
2002-08-07
Importance of Supernovae at z>1.5 to Probe Dark Energy
The accelerating expansion of the universe suggests that an unknown component with strongly negative pressure, called dark energy, currently dominates the dynamics of the universe. Such a component makes up ~70% of the energy density of the universe yet has not been predicted by the standard model of particle physics. ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17462429
hep-th/0208048
2002-08-07
A Perturbative Window into Non-Perturbative Physics
We argue that for a large class of N=1 supersymmetric gauge theories the effective superpotential as a function of the glueball chiral superfield is exactly given by a summation of planar diagrams of the same gauge theory. This perturbative computation reduces to a matrix model whose action is the tree-level superpoten...
[ "hep-th", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118908711
cond-mat/0208179
2002-08-08
Magnetic Field Dependence of Electronic Specific Heat in Pr_{1.85} Ce_{0.15} CuO_4
The specific heat of electron-doped Pr_{1.85} Ce_{0.15} CuO_4 single crystals is reported for the temperature range 2 - 10 K and magnetic field range 0 - 10 T. A non-linear magnetic field dependence is observed for the field range 0 - 2 T. Our data supports a model with lines of nodes in the gap function of these super...
[ "cond-mat.supr-con" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h balci_1", "name": "Hamza Balci", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v smolyaninova_1", "name": "Vera [\"N.\"] Smolyaninova", "publication_history": null, "h_index": null, "num_pa...
null
14579966
hep-ex/0208009
2002-08-08
A precision measurement of direct CP violation in the decay of neutral kaons into two pions
The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. The 2001 running period was devoted to collecting additional data under varied conditions compared to earlier years (1997-99). The new data yield the res...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3417009
cond-mat/0208163
2002-08-08
Absence of epidemic threshold in scale-free networks with connectivity correlations
Random scale-free networks have the peculiar property of being prone to the spreading of infections. Here we provide an exact result showing that a scale-free connectivity distribution with diverging second moment is a sufficient condition to have null epidemic threshold in unstructured networks with either assortative...
[ "cond-mat.stat-mech", "q-bio" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10585919
quant-ph/0208062
2002-08-09
Exponential Lower Bound for 2-Query Locally Decodable Codes via a Quantum Argument
A locally decodable code encodes n-bit strings x in m-bit codewords C(x), in such a way that one can recover any bit x_i from a corrupted codeword by querying only a few bits of that word. We use a quantum argument to prove that LDCs with 2 classical queries need exponential length: m=2^{Omega(n)}. Previously this was ...
[ "quant-ph", "cs.CC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "3486", "num_citations": null } ]
[ { "author_id": "i kerenidis_1", "name": "Iordanis Kerenidis", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r wolf_3", "name": "Ronald [\"de\"] Wolf", "publication_history": null, "h_index": null, "num_paper...
null
16737596
hep-ex/0208014
2002-08-12
First Observation of the Doubly Charmed Baryon Xi_cc^+
We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm hadro-production experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.1 +/- 0.5 events, a statistical significance of 6.3sigma. The obse...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119404814
quant-ph/0208074
2002-08-12
Two roles of relativistic spin operators
Operators that are associated with several important quantities, like angular momentum, play a double role: they are both generators of the symmetry group and ``observables.'' The analysis of different splittings of angular momentum into "spin" and "orbital" parts reveals the difference between these two roles. We also...
[ "quant-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "d terno_1", "name": "Daniel [\"R.\"] Terno", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
18576757
astro-ph/0208281
2002-08-14
Probing the Masses of the PSR J0621+1002 Binary System Through Relativistic Apsidal Motion
Orbital, spin and astrometric parameters of the millisecond pulsar PSR J0621+1002 have been determined through six years of timing observations at three radio telescopes. The chief result is a measurement of the rate of periastron advance, omega_dot = 0.0116 +/- 0.0008 deg/yr. Interpreted as a general relativistic effe...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118380132
quant-ph/0208112
2002-08-15
Creating superpositions that correspond to efficiently integrable probability distributions
We give a simple and efficient process for generating a quantum superposition of states which form a discrete approximation of any efficiently integrable (such as log concave) probability density functions.
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15175970
astro-ph/0208315
2002-08-16
Stellar Structure Modeling using a Parallel Genetic Algorithm for Objective Global Optimization
Genetic algorithms are a class of heuristic search techniques that apply basic evolutionary operators in a computational setting. We have designed a fully parallel and distributed hardware/software implementation of the generalized optimization subroutine PIKAIA, which utilizes a genetic algorithm to provide an objecti...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118999292
hep-ex/0208022
2002-08-16
An Unfolding Method for High Energy Physics Experiments
Finite detector resolution and limited acceptance require to apply unfolding methods in high energy physics experiments. Information on the detector resolution is usually given by a set of Monte Carlo events. Based on the experience with a widely used unfolding program (RUN) a modified method has been developed. The fi...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
12813439
cond-mat/0208340
2002-08-16
Quantum Monte Carlo method using phase-free random walks with Slater determinants
We develop a quantum Monte Carlo method for many fermions that allows the use of any one-particle basis. It projects out the ground state by random walks in the space of Slater determinants. An approximate approach is formulated to control the phase problem with a trial wave function $|\Psi_T>$. Using plane-wave basis ...
[ "cond-mat" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12470809
cond-mat/0208352
2002-08-19
Escaping free-energy minima
We introduce a novel and powerful method for exploring the properties of the multidimensional free energy surfaces of complex many-body systems by means of a coarse-grained non-Markovian dynamics in the space defined by a few collective coordinates.A characteristic feature of this dynamics is the presence of a history-...
[ "cond-mat.stat-mech", "cond-mat.soft" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference", "target.key_reference" ]
[]
[ { "author_id": "a laio_1", "name": "Alessandro Laio", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m parrinello_1", "name": "Michele Parrinello", "publication_history": null, "h_index": null, "num_papers": ...
null
1419852
astro-ph/0208345
2002-08-19
The COMBO-17 Survey: Evolution of the Galaxy Luminosity Function from 25,000 Galaxies with 0.2<z<1.2
We present a detailed empirical assessment of how the galaxy luminosity function and stellar luminosity density evolves over the last half of the universe's age (0.2<z<1.2) for galaxies of different spectral energy distributions (SED). The results are based on ~25,000 galaxies (R<24) with redshift measurements (sigma_z...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119527959
cond-mat/0208383
2002-08-20
Kinetic energy driven stripe formation and pairing in repulsive electronic systems
We study repulsive Hubbard and t-J type systems on a square lattice (long believed to capture certain quintessential aspects of the high temperature superconductors). These models (alongside the parent compounds of the high temperature superconductors) are antiferromagnetic in the absence of hole doping. As we illustra...
[ "cond-mat.str-el", "cond-mat.supr-con" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "119334963", "num_citations": null }, { "corpus_id": "117749857", "num_citations": null } ]
[ { "author_id": "m bosch_2", "name": "Marco Bosch", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "z nussinov_1", "name": "Zohar Nussinov", "publication_history": null, "h_index": null, "num_papers": null, ...
null
167
cs/0208033
2002-08-20
Complete Axiomatizations for Reasoning About Knowledge and Time
Sound and complete axiomatizations are provided for a number of different logics involving modalities for knowledge and time. These logics arise from different choices for various parameters. All the logics considered involve the discrete time linear temporal logic operators `next' and `until' and an operator for the k...
[ "cs.LO", "cs.AI" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15875634
quant-ph/0208128
2002-08-20
Relativistic Doppler effect in quantum communication
When an electromagnetic signal propagates in vacuo, a polarization detector cannot be rigorously perpendicular to the wave vector because of diffraction effects. The vacuum behaves as a noisy channel, even if the detectors are perfect. The ``noise'' can however be reduced and nearly cancelled by a relative motion of th...
[ "quant-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a peres_1", "name": "Asher Peres", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d terno_1", "name": "Daniel [\"R.\"] Terno", "publication_history": null, "h_index": null, "num_papers": null,...
null
14324755
math/0208144
2002-08-20
Galois symmetries of fundamental groupoids and noncommutative geometry
We define motivic iterated integrals on the affine line, and give a simple proof of the formula for the coproduct in the Hopf algebra of they make. We show that it encodes the group law in the automorphism group of certain non-commutative variety. We relate the coproduct with the coproduct in the Hopf algebra of decora...
[ "math.AG", "math.QA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2491924
cs/0208034
2002-08-20
Causes and Explanations: A Structural-Model Approach. Part II: Explanations
We propose new definitions of (causal) explanation, using structural equations to model counterfactuals. The definition is based on the notion of actual cause, as defined and motivated in a companion paper. Essentially, an explanation is a fact that is not known for certain but, if found to be true, would constitute an...
[ "cs.AI" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
15752457
astro-ph/0208397
2002-08-21
X- and Gamma-Ray Line Emission Processes
This chapter is intended to provide a general presentation of the atomic and nuclear processes responsible for X-ray line and gamma-ray line emission in various astrophysical environments. I consider line production from hot plasmas, from accelerated particle interactions, from the decay of radioactive nuclei synthesiz...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14667102
astro-ph/0208394
2002-08-21
Cosmological constraints from the local X-ray luminosity function of the most X-ray luminous galaxy clusters
We present precise constraints on the normalization of the power spectrum of mass fluctuations in the nearby universe, sigma_8, as a function of the mean local matter density, Omega_m. Using the observed local X-ray luminosity function of galaxy clusters from the extended BCS and REFLEX studies, a mass-luminosity relat...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17489854
astro-ph/0208404
2002-08-22
Structure of Disk Dominated Galaxies I. Bulge/Disk Parameters, Simulations, and Secular Evolution
(Abridged) A robust analysis of galaxy structural parameters, based on the modeling of bulge and disk brightnesses in the BVRH bandpasses, is presented for 121 face-on and moderately inclined late-type spirals. Each surface brightness (SB) profile is decomposed into a sum of a generalized Sersic bulge and an exponentia...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7155392
cond-mat/0208441
2002-08-22
Singular instability of exact stationary solutions of the nonlocal Gross-Pitaevskii equation
In this paper we show numerically that for nonlinear Schrodinger type systems the presence of nonlocal perturbations can lead to a beyond-all-orders instability of stable solutions of the local equation. For the specific case of the nonlocal one-dimensional Gross-Pitaevskii equation with an external standing light wave...
[ "cond-mat.soft" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b deconinck_1", "name": "Bernard Deconinck", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j kutz_1", "name": "J. [\"Nathan\"] Kutz", "publication_history": null, "h_index": null, "num_papers...
null
119450384
nucl-ex/0208014
2002-08-23
Recent results on spectra and yields from NA49
The energy dependence of hadron production in central Pb+Pb collisions is presented and discussed. In particular, midrapidity $m_T$-spectra for $\pi^-$, $K^-$, $K^+$, $p$, $\bar{p}$, $d$, $\phi$, $\Lambda$ and $\bar{\Lambda}$ at 40, 80 and 158 $A$GeV are shown. In addition $\Xi$ and $\Omega$ spectra are available at 15...
[ "nucl-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15178679
astro-ph/0208426
2002-08-23
Simulations of the heating of the Galactic stellar disc
The velocity dispersion of nearby stars in the Galactic disc is well known to increase substantially with age; this is the so-called Age-Velocity relation, and is interpreted as a ``heating'' of the disc as a function of time. We have studied the heating of the disc due to giant molecular clouds and halo black holes, u...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5163410
hep-ph/0208209
2002-08-23
Higgs Boson Theory and Phenomenology
Precision electroweak data presently favors a weakly-coupled Higgs sector as the mechanism responsible for electroweak symmetry breaking. Low-energy supersymmetry provides a natural framework for weakly-coupled elementary scalars. In this review, we summarize the theoretical properties of the Standard Model (SM) Higgs ...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1770460
cs/0208040
2002-08-25
Using Hierarchical Data Mining to Characterize Performance of Wireless System Configurations
This paper presents a statistical framework for assessing wireless systems performance using hierarchical data mining techniques. We consider WCDMA (wideband code division multiple access) systems with two-branch STTD (space time transmit diversity) and 1/2 rate convolutional coding (forward error correction codes). Mo...
[ "cs.CE" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a verstak_0", "name": "Alex Verstak", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n ramakrishnan_1", "name": "Naren Ramakrishnan", "publication_history": null, "h_index": null, "num_papers"...
null
13951096
math-ph/0208036
2002-08-26
Geometric Structures in Field Theory
This review paper is concerned with the generalizations to field theory of the tangent and cotangent structures and bundles that play fundamental roles in the Lagrangian and Hamiltonian formulations of classical mechanics. The paper reviews, compares and constrasts the various generalizations in order to bring some uni...
[ "math-ph", "math.MP", "math.SG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118709782
cond-mat/0208492
2002-08-26
A Possible Via For Proving The Approach Of The Hubbard Ground States Toward Stripes And Other Doping States
In this simple note, we suggest a way to rigorously establishing constraints on the form of the ground states of the Hubbard and t-J models and extended longer (yet finite) range variants for various dopings, once exact numerical results are established for these Hamiltonians on finite size clusters with two different ...
[ "cond-mat.str-el", "cond-mat.supr-con" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "z nussinov_1", "name": "Zohar Nussinov", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
39828908
cond-mat/0208535
2002-08-27
Small-world properties of the Indian Railway network
Structural properties of the Indian Railway network is studied in the light of recent investigations of the scaling properties of different complex networks. Stations are considered as `nodes' and an arbitrary pair of stations is said to be connected by a `link' when at least one train stops at both stations. Rigorous ...
[ "cond-mat.soft" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118816610
cond-mat/0208565
2002-08-28
Bath generated work extraction in two-level systems
The spin-boson model, often used in NMR and ESR physics, quantum optics and spintronics, is considered in a solvable limit to model a spin one-half particle interacting with a bosonic thermal bath. By applying external pulses to a non-equilibrium initial state of the spin, work can be extracted from the thermalized bat...
[ "cond-mat.stat-mech", "cond-mat.mes-hall" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "c pombo_0", "name": "Claudia Pombo", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a allahverdyan_1", "name": "Armen [\"E.\"] Allahverdyan", "publication_history": null, "h_index": null, "num...
null
16219710
astro-ph/0208512
2002-08-28
Exploring the Expansion History of the Universe
Exploring the recent expansion history of the universe promises insights into the cosmological model, the nature of dark energy, and potentially clues to high energy physics theories and gravitation. We examine the extent to which precision distance-redshift observations can map out the history, including the accelerat...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119093638
cond-mat/0208553
2002-08-28
Spatial Structure of the Internet Traffic
The Internet infrastructure is not virtual: its distribution is dictated by social, geographical, economical, or political constraints. However, the infrastructure's design does not determine entirely the information traffic and different sources of complexity such as the intrinsic heterogeneity of the network or human...
[ "cond-mat.dis-nn", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
941004
physics/0208095
2002-08-28
Solving the riddle of the bright mismatches: hybridization in oligonucleotide arrays
HDONA technology is predicated on two ideas. First, the differential between high-affinity (perfect match, PM) and lower-affinity (mismatch, MM) probes is used to minimize cross-hybridization. Second, several short probes along the transcript are combined, introducing redundancy. Both ideas have shown problems in pract...
[ "physics.bio-ph", "q-bio" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f naef_1", "name": "Félix Naef", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m magnasco_1", "name": "Marcelo [\"O.\"] Magnasco", "publication_history": null, "h_index": null, "num_papers": ...
null
2461481
cond-mat/0208564
2002-08-28
Quantum Brownian motion and its conflict with the second law
The Brownian motion of a harmonically bound quantum particle and coupled to a harmonic quantum bath is exactly solvable. At low enough temperatures the stationary state is non-Gibbsian due to an entanglement with the bath. This happens when a cloud of bath modes around the particle is formed. Equilibrium thermodynamics...
[ "cond-mat.stat-mech", "cond-mat.mes-hall" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "t nieuwenhuizen_1", "name": "Theo [\"M.\"] Nieuwenhuizen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a allahverdyan_1", "name": "Armen [\"E.\"] Allahverdyan", "publication_history": null, "h_...
null
8020505
cond-mat/0208566
2002-08-28
Absence of an equilibrium ferromagnetic spin glass phase in three dimensions
Using ground state computations, we study the transition from a spin glass to a ferromagnet in 3-d spin glasses when changing the mean value of the spin-spin interaction. We find good evidence for replica symmetry breaking up till the critical value where ferromagnetic ordering sets in, and no ferromagnetic spin glass ...
[ "cond-mat.dis-nn" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f krzakala_1", "name": "Florent Krzakala", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "o martin_2", "name": "Olivier [\"C.\"] Martin", "publication_history": null, "h_index": null, "num_pap...
null