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196313
cond-mat/9911492
1999-11-30
Epidemics and percolation in small-world networks
We study some simple models of disease transmission on small-world networks, in which either the probability of infection by a disease or the probability of its transmission is varied, or both. The resulting models display epidemic behavior when the infection or transmission probability rises above the threshold for si...
[ "cond-mat.stat-mech", "cond-mat.dis-nn", "q-bio" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119418228
cond-mat/9912008
1999-12-01
Quantum effects on the BKT phase transition of two-dimensional Josephson arrays
The phase diagram of two dimensional Josephson arrays is studied by means of the mapping to the quantum XY model. The quantum effects onto the thermodynamics of the system can be evaluated with quantitative accuracy by a semiclassical method, the {\em pure-quantum self-consistent harmonic approximation}, and those of d...
[ "cond-mat.mes-hall", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a cuccoli_1", "name": "Alessandro Cuccoli", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a fubini_1", "name": "Andrea Fubini", "publication_history": null, "h_index": null, "num_papers": nul...
null
14097208
hep-ph/9912214
1999-12-01
The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
We present the Monte Carlo event generator KK version 4.13 for precision predictions of the Electroweak Standard Model for the process $e^+e^-\to f\bar{f} +n\gamma$, $f=\mu,\tau,d,u,s,c,b$ at centre of mass energies from $\tau$ lepton threshold to 1TeV, that is for LEP, SLC, future Linear Colliders, $b,c,\tau$-factorie...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16849221
astro-ph/9912024
1999-12-01
The Compact Central Object in Cas A: A Neutron Star with Hot Polar Caps or a Black Hole?
The central pointlike X-ray source of the Cas A supernova remnant was discovered in the Chandra First Light Observation and found later in the archival ROSAT and Einstein images. The analysis of these data does not show statistically significant variability of the source. The power-law fit yields the photon index 2.6-4...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2304975
astro-ph/9912048
1999-12-02
Caltech Faint Galaxy Redshift Survey X: A Redshift Survey in the Region of the Hubble Deep Field North
A redshift survey has been carried out in the region of the Hubble Deep Field North using the Low Resolution Imaging Spectrograph at the Keck Observatory. The resulting redshift catalog, which contains 671 entries, is a compendium of our own data together with published LRIS/Keck data. It is more than 92% complete for ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13320296
hep-th/0101026
1999-12-02
The Holographic Renormalization Group
In this lecture, we review the derivation of the holographic renormalization group given in hep-th/9912012. Some extra background material is included, and various applications are discussed.
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7054249
cond-mat/9912037
1999-12-02
Electrical transport in the ferromagnetic state of manganites: Small-polaron metallic conduction at low temperatures
We report measurements of the resistivity in the ferromagnetic state of epitaxial thin films of La_{1-x}Ca_{x}MnO_{3} and the low temperature specific heat of a polycrystalline La_{0.8}Ca_{0.2}MnO_{3}. The resistivity below 100 K can be well fitted by \rho - \rho_{o} = E \omega_{s}/sinh^{2}(\hbar \omega_{s}/2k_{B}T) wi...
[ "cond-mat.str-el" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g zhao_41", "name": "Guo-meng Zhao", "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_...
null
17648764
math/9912012
1999-12-02
Tensor product multiplicities, canonical bases and totally positive varieties
We obtain a family of explicit "polyhedral" combinatorial expressions for multiplicities in the tensor product of two simple finite-dimensional modules over a complex semisimple Lie algebra. Here "polyhedral" means that the multiplicity in question is expressed as the number of lattice points in some convex polytope. O...
[ "math.RT", "math.AG", "math.CO", "math.QA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14136609
gr-qc/9912013
1999-12-02
Coframe teleparallel models of gravity. Exact solutions
The superstring and superbrane theories which include gravity as a necessary and fundamental part renew an interest to alternative representations of general relativity as well as the alternative models of gravity. We study the coframe teleparallel theory of gravity with a most general quadratic Lagrangian. The coframe...
[ "gr-qc" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "y itin_1", "name": "Y. Itin", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
10243294
math/9912027
1999-12-04
Involutive Bases of Polynomial Ideals
In this paper we consider an algorithmic technique more general than that proposed by Zharkov and Blinkov for the involutive analysis of polynomial ideals. It is based on a new concept of involutive monomial division which is defined for a monomial set. Such a division provides for each monomial the self-consistent sep...
[ "math.AC", "cs.NA", "math.NA", "math.RA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7213272
physics/9912012
1999-12-04
Dynamic Fitness Landscapes in Molecular Evolution
We study self-replicating molecules under externally varying conditions. Changing conditions such as temperature variations and/or alterations in the environment's resource composition lead to both non-constant replication and decay rates of the molecules. In general, therefore, molecular evolution takes place in a dyn...
[ "physics.bio-ph", "adap-org", "cond-mat.soft", "cond-mat.stat-mech", "nlin.AO", "q-bio.PE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11345223
math/9912029
1999-12-05
Minimal Involutive Bases
In this paper we present an algorithm for construction of minimal involutive polynomial bases which are Groebner bases of the special form. The most general involutive algorithms are based on the concept of involutive monomial division which leads to partition of variables into multiplicative and non-multiplicative. Th...
[ "math.AC", "math.NA", "math.RA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119882601
astro-ph/9912143
1999-12-07
The radio source B 1834+620: A double-double radio galaxy with interesting properties
We present a study of the peculiar radio galaxy B 1834+620. It is characterised by the presence of a 420-kpc large edge-brightened radio source which is situated within, and well aligned with, a larger (1.66 Mpc) radio source. Both sources apparently originate in the same host galaxy, which has a R_s-magnitude of 19.7 ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15200907
astro-ph/9912141
1999-12-07
Radio galaxies with a `double-double' morphology: I - Analysis of the radio properties and evidence for interrupted activity in active galactic nuclei
We present four Mpc-sized radio galaxies which consist of a pair of double-lobed radio sources, aligned along the same axis, and with a coinciding radio core. We have called these peculiar radio sources `double-double' radio galaxies (DDRG) and propose a general definition of such sources: A `double-double' radio galax...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3265901
astro-ph/9912134
1999-12-07
Interfacing Interpreted and Compiled Languages to Support Applications on a Massively Parallel Network of Workstations (MP-NOW)
Astronomers are increasingly using Massively Parallel Network of Workstations (MP-NOW) to address their most challenging computing problems. Fully exploiting these systems is made more difficult as more and more modeling and data analysis software is written in interpreted languages (such as IDL, MATLAB, and Mathematic...
[ "astro-ph", "cs.DC" ]
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": "m gokhale_1", "name": "Maya [\"B.\"] Gokhale", "publication_history": null, "h_index": null, "num_papers": ...
null
13925698
astro-ph/9912119
1999-12-07
Weak Lensing with SDSS Commissioning Data: The Galaxy-Mass Correlation Function To 1/h Mpc
(abridged) We present measurements of galaxy-galaxy lensing from early commissioning imaging data from the Sloan Digital Sky Survey (SDSS). We measure a mean tangential shear around a stacked sample of foreground galaxies in three bandpasses out to angular radii of 600'', detecting the shear signal at very high statist...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14643560
adap-org/9912001
1999-12-08
Frontiers of finance: Evolution and efficient markets
In this review article we explore several recent advances in the quantitative modeling of financial markets. We begin with the Efficient Markets Hypothesis and describe how this controversial idea has stimulated a number of new directions of research, some focusing on more elaborate mathematical models that are captabl...
[ "adap-org", "nlin.AO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14931933
hep-th/9912080
1999-12-09
Partial Supersymmetry Breaking from Five Dimensions
Theories of partial supersymmetry breaking N=2 -> N=1 in four dimensions are derived by coupling the N=2 massless gravitino multiplet to N=2 supergravity in five dimensions and performing a generalized dimensional reduction on S^1/Z_2 with the Scherk-Schwarz mechanism. These theories agree with results that were previo...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r altendorfer_1", "name": "Richard Altendorfer", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
17566600
astro-ph/9912197
1999-12-09
VLA OH and H I Zeeman Observations of the NGC 6334 Complex
We present OH and H I Zeeman observations of the NGC 6334 complex taken with the Very Large Array. The OH absorption profiles associated with the complex are relatively narrow (del-v_FWHM ~ 3 km s^1) and single-peaked over most of the sources. The H I absorption profiles contain several blended velocity components. One...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119340134
cond-mat/9912167
1999-12-09
Temperature and field dependence of the phase separation, structure, and magnetic ordering in La$_{1-x}$Ca$_x$MnO$_3$, ($x=0.47$, 0.50, and 0.53)
Neutron powder diffraction measurements, combined with magnetization and resistivity data, have been carried out in the doped perovskite La$_{1-x}$Ca$_x$MnO$_3$ ($x=0.47$, 0.50, and 0.53) to elucidate the structural, magnetic, and electronic properties of the system around the composition corresponding to an equal numb...
[ "cond-mat.str-el" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "q huang_28", "name": "Q. [\"Z.\"] Huang", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j lynn_3", "name": "Jeffrey [\"W.\"] Lynn", "publication_history": null, "h_index": null, "num_papers":...
null
117160374
astro-ph/9912224
1999-12-10
ESO Imaging Survey: Past Activities and Future Prospects
The ESO Imaging Survey (EIS) is an ongoing project to carry out public imaging surveys to support programs on the ESO Very Large Telescope (VLT). The first phase of the project started in July 1997 and consisted of a moderately deep, large-area survey (EIS-WIDE) and a deep optical/infrared survey (EIS-DEEP) using the E...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l costa_3", "name": "Luiz [\"Nicolaci\",\"da\"] Costa", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s arnouts_1", "name": "Stéphane Arnouts", "publication_history": null, "h_index": null, "...
null
118642278
cond-mat/9912186
1999-12-10
Simultaneous quantization of edge and bulk Hall conductivity
The edge Hall conductivity is shown to be an integer multiple of $e^2/h$ which is almost surely independent of the choice of the disordered configuration. Its equality to the bulk Hall conductivity given by the Kubo-Chern formula follows from K-theoretic arguments. This leads to quantization of the Hall conductance for...
[ "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
840306
quant-ph/9912053
1999-12-11
A Proof of the Security of Quantum Key Distribution
We prove the security of quantum key distribution against the most general attacks which can be performed on the channel, by an eavesdropper who has unlimited computation abilities, and the full power allowed by the rules of classical and quantum physics. A key created that way can then be used to transmit secure messa...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "16735020", "num_citations": null }, { "corpus_id": "2948183", "num_citations": null }, { "corpus_id": "8944071", "num_citations": null } ]
[ { "author_id": "e biham_1", "name": "Eli Biham", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m boyer_4", "name": "Michel Boyer", "publication_history": null, "h_index": null, "num_papers": null, "num_c...
null
13576595
hep-th/9912123
1999-12-14
Knot Invariants and Topological Strings
We find further evidence for the conjecture relating large N Chern-Simons theory on S^3 with topological string on the resolved conifold geometry by showing that the Wilson loop observable of a simple knot on S^3 (for any representation) agrees to all orders in N with the corresponding quantity on the topological strin...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2714198
hep-ex/9912032
1999-12-14
Probing BFKL Dynamics in the Dijet Cross Section at Large Rapidity Intervals in ppbar Collisions at sqrt{s}=1800 and 630 GeV
Inclusive dijet production at large pseudorapidity intervals (delta_eta) between the two jets has been suggested as a regime for observing BFKL dynamics. We have measured the dijet cross section for large delta_eta in ppbar collisions at sqrt{s}=1800 and 630 GeV using the DO detector. The partonic cross section increas...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b abbott_2", "name": "B. Abbott", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m abolins_1", "name": "Maris [\"A.\"] Abolins", "publication_history": null, "h_index": null, "num_papers": nul...
null
2216320
math/9912117
1999-12-15
The Free Boundary Problem in the Optimization of Composite Membranes
This is a continuation of the paper 'Symmetry breaking and other phenomena in the optimization of eigenvalues for composite membranes' by S. Chanillo, D. Grieser, M. Imai, K. Kurata, and I. Ohnishi. Again, we consider the following eigenvalue optimization problem: Given a bounded domain $\Omega\subset\R^n$ and numbers ...
[ "math.AP", "math.OC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16273589
astro-ph/9912342
1999-12-16
Chemical composition of 90 F and G disk dwarfs
High resolution, high S/N spectra have been obtained for a sample of 90 F and G main-sequence disk stars covering the metallicity range -1.0 < [Fe/H] < +0.1, and have been analysed in a parallel way to the work of Edvardsson et al. (1993). Effective temperatures are based on the Alonso et al. (1996) calibration of colo...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6555154
hep-th/9912136
1999-12-16
Gauge Invariant Variational Approach with Fermions: the Schwinger Model
We extend the gauge invariant variational approach of Phys. Rev. D52 (1995) 3719, hep-th/9408081, to theories with fermions. As the simplest example we consider the massless Schwinger model in 1+1 dimensions. We show that in this solvable model the simple variational calculation gives exact results.
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "w brown_4", "name": "William [\"E.\"] Brown", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j garrahan_1", "name": "Juan [\"P.\"] Garrahan", "publication_history": null, "h_index": null, "num...
null
253116
astro-ph/9912366
1999-12-17
Measuring the Cosmic Equation of State with Counts of Galaxies
The classical dN/dz test allows the determination of fundamental cosmological parameters from the evolution of the cosmic volume element. This test is applied by measuring the redshift distribution of a tracer whose evolution in number density is known. In the past, ordinary galaxies have been used as such a tracer; ho...
[ "astro-ph", "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13952549
astro-ph/9912432
1999-12-20
The thermal history of the intergalactic medium
At redshifts z >~ 2, most of the baryons reside in the smooth intergalactic medium which is responsible for the low column density Lyman-alpha forest. This photoheated gas follows a tight temperature-density relation which introduces a cut-off in the distribution of widths of the Lyman-alpha absorption lines (b-paramet...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
31163099
astro-ph/9912456
1999-12-21
Milagrito: a TeV air-shower array
Milagrito, a large, covered water-Cherenkov detector, was the world's first air-shower-particle detector sensitive to cosmic gamma rays below 1 TeV. It served as a prototype for the Milagro detector and operated from February 1997 to May 1998. This paper gives a description of Milagrito, a summary of the operating expe...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5162509
cs/9912015
1999-12-22
Comparative Analysis of Five XML Query Languages
XML is becoming the most relevant new standard for data representation and exchange on the WWW. Novel languages for extracting and restructuring the XML content have been proposed, some in the tradition of database query languages (i.e. SQL, OQL), others more closely inspired by XML. No standard for XML query language ...
[ "cs.DB" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a bonifati_1", "name": "Angela Bonifati", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s ceri_1", "name": "Stefano Ceri", "publication_history": null, "h_index": null, "num_papers": null, ...
null
10934020
hep-ph/9912463
1999-12-22
Improved SUSY QCD corrections to Higgs boson decays into quarks and squarks
We improve the calculation of the supersymmetric $O(\alpha_s)$ QCD corrections to the decays of Higgs bosons into quarks and squarks in the Minimal Supersymmetric Standard Model. In the on-shell renormalization scheme these corrections can be very large, which makes the perturbative expansion unreliable. This is especi...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h eberl_1", "name": "Helmut Eberl", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k hidaka_1", "name": "Keisho Hidaka", "publication_history": null, "h_index": null, "num_papers": null, "...
null
119512047
cond-mat/9912441
1999-12-23
Quasiballistic correction to the density of states in three-dimensional metal
We study the exchange correction to the density of states in the three-dimensional metal near the Fermi energy. In the ballistic limit, when the distance to the Fermi level exceeds the inverse transport relaxation time $1/\tau$, we find the correction linear in the distance from the Fermi level. By a large parameter $\...
[ "cond-mat.dis-nn", "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15286697
quant-ph/9912107
1999-12-24
Quantum feedback control and classical control theory
We introduce and discuss the problem of quantum feedback control in the context of established formulations of classical control theory, examining conceptual analogies and essential differences. We describe the application of state-observer based control laws, familiar in classical control theory, to quantum systems an...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
31607064
hep-ex/9912065
1999-12-27
A Measurement of the W to tau+nu Production Cross Section in p-pbar Collisions at sqrt(s) = 1.8 TeV
We report on a measurement of sigma(p-pbar to W+X) times B(W to tau+nu) in p-pbar collisions at sqrt(s) = 1.8 TeV at the Fermilab Tevatron. The measurement is based on an integrated luminosity of 18 pb^-1 of data collected with the D0 detector during 1994-1995. We find that sigma(p-pbar to W+X) times B(W to tau+nu) = 2...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b abbott_2", "name": "B. Abbott", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m abolins_1", "name": "Maris [\"A.\"] Abolins", "publication_history": null, "h_index": null, "num_papers": nul...
null
16821997
hep-ex/9912064
1999-12-27
Charm Hadron Production Fractions
The world average values for the probabilities that a charm quark fragments into D^*+ and Ds^+ have been calculated to be f(c->D^*+)=0.235+/-0.007(+/-0.007) and f(c->Ds^+)=0.101+/-0.009(+/-0.025), respectively. The average values for D^0, D^+ and Lambda_c^+ have been also calculated.
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16753129
math/9912225
1999-12-29
Layered Multishift Coupling for use in Perfect Sampling Algorithms (with a primer on CFTP)
In this article we describe a new coupling technique which is useful in a variety of perfect sampling algorithms. A multishift coupler generates a random function f() so that for each real x, f(x)-x is governed by the same fixed probability distribution, such as a normal distribution. We develop the class of layered mu...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
5968219
gr-qc/9912119
1999-12-31
The Thermodynamics of Black Holes
We review the present status of black hole thermodynamics. Our review includes discussion of classical black hole thermodynamics, Hawking radiation from black holes, the generalized second law, and the issue of entropy bounds. A brief survey also is given of approaches to the calculation of black hole entropy. We concl...
[ "gr-qc", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
120223370
hep-ex/0001001
2000-01-01
A CsI(Tl) Scintillating Crystal Detector for the Studies of Low Energy Neutrino Interactions
Scintillating crystal detector may offer some potential advantages in the low-energy, low-background experiments. A 500 kg CsI(Tl) detector to be placed near the core of Nuclear Power Station II in Taiwan is being constructed for the studies of electron-neutrino scatterings and other keV-MeV range neutrino interactions...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h li_366", "name": "H. [\"B.\"] Li", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y liu_474", "name": "Y. Liu", "publication_history": null, "h_index": null, "num_papers": null, "num_cit...
null
2713989
math/0001002
2000-01-01
Symplectic quotients by a nonabelian group and by its maximal torus
This paper examines the relationship between the symplectic quotient X//G of a Hamiltonian G-manifold X, and the associated symplectic quotient X//T, where T is a maximal torus, in the case in which X//G is a compact manifold or orbifold. The three main results are: a formula expressing the rational cohomology ring of ...
[ "math.SG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18586881
math/0001005
2000-01-02
The elliptic curve in the S-duality theory and Eisenstein series for Kac-Moody groups
We establish a relation between the generating functions appearing in the S-duality conjecture of Vafa and Witten and geometric Eisenstein series for Kac-Moody groups. For a pair consisting of a surface and a curve on it, we consider a refined geometric function E (involving G-bundles with parabolic structures along th...
[ "math.AG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119106856
cond-mat/0001070
2000-01-07
Nonequilibrium Critical Phenomena and Phase Transitions into Absorbing States
This review addresses recent developments in nonequilibrium statistical physics. Focusing on phase transitions from fluctuating phases into absorbing states, the universality class of directed percolation is investigated in detail. The survey gives a general introduction to various lattice models of directed percolatio...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17709518
astro-ph/0001100
2000-01-07
Spectral Energy Distributions for Disk and Halo M--Dwarfs
We have obtained infrared (1 to 2.5 micron) spectroscopy for 42 halo and disk dwarfs with spectral type M1 to M6.5. These data are compared to synthetic spectra generated by the latest model atmospheres of Allard & Hauschildt. Photospheric parameters metallicity, effective temperature and radius are determined for the ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6884806
math-ph/0001016
2000-01-07
Asymptotic Behavior of Thermal Non-Equilibrium Steady States for a Driven Chain of Anharmonic Oscillators
We consider a model of heat conduction which consists of a finite nonlinear chain coupled to two heat reservoirs at different temperatures. We study the low temperature asymptotic behavior of the invariant measure. We show that, in this limit, the invariant measure is characterized by a variational principle. We relate...
[ "math-ph", "cond-mat.stat-mech", "math.MP", "math.PR", "nlin.CD" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "2539694", "num_citations": null }, { "corpus_id": "7615778", "num_citations": null } ]
[ { "author_id": "l rey-bellet_1", "name": "Luc Rey-Bellet", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "l thomas_1", "name": "Lawrence [\"E.\"] Thomas", "publication_history": null, "h_index": null, "num_pa...
null
19109066
astro-ph/0001194
2000-01-11
Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B
We report the discovery of a widely separated (258$\farcs3\pm0\farcs$4) T dwarf companion to the Gl 570ABC system. This new component, Gl 570D, was initially identified from the Two Micron All Sky Survey (2MASS). Its near-infrared spectrum shows the 1.6 and 2.2 $\micron$ CH$_4$ absorption bands characteristic of T dwar...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
5702117
hep-th/0001072
2000-01-12
Twistors and Actions on Coset Manifolds
Particle and string actions on coset spaces typically lack a quadratic kinetic term, making their quantization difficult. We define a notion of twistors on these spaces, which are hypersurfaces in a vector space that transform linearly under the isometry group of the coset. By associating the points of the coset space ...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "y zunger_1", "name": "Yonatan Zunger", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
118999807
astro-ph/0001200
2000-01-12
APM 08279+5255: Keck Near- and Mid-IR High-Resolution Imaging
We present Keck high-resolution near-IR (2.2 microns; FWHM~0.15") and mid-IR (12.5 microns; FWHM~0.4") images of APM08279+5255, a z=3.91 IR-luminous BALQSO with a prodigious apparent bolometric luminosity of 5x10^{15} Lsun, the largest known in the universe. The K-band image shows that this system consists of three com...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
22550560
nlin/0001023
2000-01-13
Large negative velocity gradients in Burgers turbulence
We consider 1D Burgers equation driven by large-scale white-in-time random force. The tails of the velocity gradients probability distribution function (PDF) are analyzed by saddle-point approximation in the path integral describing the velocity statistics. The structure of the saddle-point (instanton), that is velocit...
[ "nlin.CD", "cond-mat.stat-mech", "physics.flu-dyn" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15302471
astro-ph/0001239
2000-01-13
Modeling the X-ray - UV Correlations in NGC 7469
We model the correlated X-ray - UV observations of NGC 7469, for which well sampled data in both these bands have been obtained recently in a multiwavelength monitoring campaign. To this end we derive the transfer function in wavelength \ls and time lag \t, for reprocessing hard (X-ray) photons from a point source to s...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a berkley_1", "name": "Andrew [\"J.\"] Berkley", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d kazanas_1", "name": "Demosthenes Kazanas", "publication_history": null, "h_index": null, "num_...
null
880207
cs/0001010
2000-01-14
A Real World Implementation of Answer Extraction
In this paper we describe ExtrAns, an answer extraction system. Answer extraction (AE) aims at retrieving those exact passages of a document that directly answer a given user question. AE is more ambitious than information retrieval and information extraction in that the retrieval results are phrases, not entire docume...
[ "cs.CL" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "d aliod_1", "name": "Diego [\"Mollá\"] Aliod", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j berri_0", "name": "Jawad Berri", "publication_history": null, "h_index": null, "num_papers": nul...
null
15077430
astro-ph/0001272
2000-01-15
The MACHO Project: Microlensing Results from 5.7 Years of LMC Observations
We report on our search for microlensing towards the Large Magellanic Cloud (LMC). Analysis of 5.7 years of photometry on 11.9 million stars in the LMC reveals 13 - 17 microlensing events. This is significantly more than the $\sim$ 2 to 4 events expected from lensing by known stellar populations. The timescales ($\that...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
20749093
hep-ph/0001142
2000-01-15
Bloch-Nordsieck violating electroweak corrections to inclusive TeV scale hard processes
We point out that, since the colliders initial states (e+ e-,p p, p pbar, ... ) carry a definite nonabelian flavor, electroweak radiative corrections to inclusive hard cross sections at the TeV scale are affected by peculiar Bloch-Nordsieck violating double logs. We recall the setup of soft cancellation theorems, and w...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18523597
astro-ph/0001295
2000-01-17
Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity
We present analytic formulae that approximate the evolution of stars for a wide range of mass and metallicity. Stellar luminosity, radius and core mass are given as a function of age, M and Z, for all phases from the zero-age main-sequence up to, and including, the remnant stages. For the most part we find continuous f...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6305097
cs/0001012
2000-01-18
Measures of Distributional Similarity
We study distributional similarity measures for the purpose of improving probability estimation for unseen cooccurrences. Our contributions are three-fold: an empirical comparison of a broad range of measures; a classification of similarity functions based on the information that they incorporate; and the introduction ...
[ "cs.CL" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
123513722
nlin/0001035
2000-01-18
Levy Anomalous Diffusion and Fractional Fokker--Planck Equation
We demonstrate that the Fokker-Planck equation can be generalized into a 'Fractional Fokker-Planck' equation, i.e. an equation which includes fractional space differentiations, in order to encompass the wide class of anomalous diffusions due to a Levy stable stochastic forcing. A precise determination of this equation ...
[ "nlin.CD" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119167717
math/0001108
2000-01-19
Manifolds with boundary and of bounded geometry
For non-compact manifolds with boundary we prove that bounded geometry defined by coordinate-free curvature bounds is equivalent to bounded geometry defined using bounds on the metric tensor in geodesic coordinates. We produce a nice atlas with subordinate partition of unity on manifolds with boundary of bounded geomet...
[ "math.DG", "math.GT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
236327578
hep-ex/0001044
2000-01-19
Low energy atmospheric muon neutrinos in MACRO
We present the measurement of two event samples induced by atmospheric $\nu_\mu$ of average energy $ \bar {E}_\nu \sim 4 GeV$. In the first sample, the neutrino interacts inside the MACRO detector producing an upward-going muon leaving the apparatus. The ratio of the number of observed to expected events is $ 0.57 \pm0...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7411376
nlin/0001042
2000-01-19
Measuring Information Transfer
An information theoretic measure is derived that quantifies the statistical coherence between systems evolving in time. The standard time delayed mutual information fails to distinguish information that is actually exchanged from shared information due to common history and input signals. In our new approach, these inf...
[ "nlin.CD" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
16788058
cond-mat/0001267
2000-01-19
Collective Modes and Electronic Raman Scattering in the Cuprates
While the low frequency electronic Raman response in the superconducting state of the cuprates can be largely understood in terms of a d-wave energy gap, a long standing problem has been an explanation for the spectra observed in A_{1g} polarization orientations. We present calculations which suggest that the peak posi...
[ "cond-mat.supr-con" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "f venturini_2", "name": "Francesca Venturini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "u michelucci_1", "name": "U. Michelucci", "publication_history": null, "h_index": null, "num_paper...
null
1985440
cs/0001015
2000-01-19
Multi-Agent Only Knowing
Levesque introduced a notion of ``only knowing'', with the goal of capturing certain types of nonmonotonic reasoning. Levesque's logic dealt with only the case of a single agent. Recently, both Halpern and Lakemeyer independently attempted to extend Levesque's logic to the multi-agent case. Although there are a number ...
[ "cs.AI", "cs.LO" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18305188
math-ph/0001030
2000-01-20
Acoustics of the Indian Drum
This article investigates as to how the Indian Drums are able to produce harmonics. In particular, it looks at the density distribution on an Indian Drum, the Tabla, and shows that it is the form of the density distribution that results in harmonics.
[ "math-ph", "math.MP" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s malu_1", "name": "Siddharth Malu", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a siddharthan_1", "name": "Advaith Siddharthan", "publication_history": null, "h_index": null, "num_papers":...
null
449219
quant-ph/0001071
2000-01-20
Simulation of topological field theories by quantum computers
Quantum computers will work by evolving a high tensor power of a small (e.g. two) dimensional Hilbert space by local gates, which can be implemented by applying a local Hamiltonian H for a time t. In contrast to this quantum engineering, the most abstract reaches of theoretical physics has spawned topological models ha...
[ "quant-ph", "math.GT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119330011
astro-ph/0001364
2000-01-20
New Techniques for Relating Dynamically Close Galaxy Pairs to Merger and Accretion Rates : Application to the SSRS2 Redshift Survey
We introduce two new pair statistics, which relate close galaxy pairs to the merger and accretion rates. We demonstrate the importance of correcting these (and other) pair statistics for selection effects related to sample depth and completeness. In particular, we highlight the severe bias that can result from the use ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11572849
astro-ph/0001370
2000-01-21
A Third Star in the T Tauri System
New speckle-holographic images of the T Tauri Infrared Companion (T Tauri IRC; T Tauri S) reveal it to be a double system with a sky-projected separation of 0".05, corresponding to a linear distance of 7 AU. The presence of this third star may account for the relative paucity of dust surrounding the IRC.
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15931717
astro-ph/0001388
2000-01-21
ROTSE All Sky Surveys for Variable Stars I: Test Fields
The ROTSE-I experiment has generated CCD photometry for the entire Northern sky in two epochs nightly since March 1998. These sky patrol data are a powerful resource for studies of astrophysical transients. As a demonstration project, we present first results of a search for periodic variable stars derived from ROTSE-I...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119326463
hep-ph/0001223
2000-01-21
Gauge Interactions in the Dual Standard Model
We present a geometric argument for the transformation properties of SU(5) --> S(U(3) x U(2)) monopoles under the residual gauge symmetry. This strongly supports the proposal that monopoles of the dual standard model interact via a gauge theory of the standard model symmetry group, with the monopoles having the same sp...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "n lepora_1", "name": "Nathan [\"F.\"] Lepora", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
119495733
hep-ex/0001052
2000-01-21
ICANOE - Imaging and Calorimetric Neutrino Oscillation Experiment
The main scientific goal of the ICANOE detector is the one of elucidating in a comprehensive way the pattern of neutrino masses and mixings, following the SuperKamiokande results and the observed solar neutrinos deficit. To achieve these goals, the experimental method is based upon the complementary and simultaneous de...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a rubbia_1", "name": "André Rubbia", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "i collaboration_2", "name": "Icarus Collaboration", "publication_history": null, "h_index": null, "num_paper...
null
14399668
astro-ph/0001366
2000-01-21
The abundance of high-redshift objects as a probe of non-Gaussian initial conditions
The observed abundance of high-redshift galaxies and clusters contains precious information about the properties of the initial perturbations. We present a method to compute analytically the number density of objects as a function of mass and redshift for a range of physically motivated non-Gaussian models. In these mo...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6390999
physics/0001052
2000-01-23
Statistical mechanics of neocortical interactions: Canonical momenta indicators of electroencephalography
A series of papers has developed a statistical mechanics of neocortical interactions (SMNI), deriving aggregate behavior of experimentally observed columns of neurons from statistical electrical-chemical properties of synaptic interactions. While not useful to yield insights at the single neuron level, SMNI has demonst...
[ "physics.bio-ph", "physics.data-an", "q-bio" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14247587
nlin/0001049
2000-01-24
Period Stabilization in the Busse-Heikes Model of the Kuppers-Lortz Instability
The Busse-Heikes dynamical model is described in terms of relaxational and nonrelaxational dynamics. Within this dynamical picture a diverging alternating period is calculated in a reduced dynamics given by a time-dependent Hamiltonian with decreasing energy. A mean period is calculated which results from noise stabili...
[ "nlin.PS" ]
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": "m miguel_2", "name": "Maxi [\"San\"] Miguel", "publication_history": null, "h_index": null, "num_papers": null,...
null
13819399
astro-ph/0001492
2000-01-27
Mapping the Galactic Halo I. The `Spaghetti' Survey
We describe a major survey of the Milky Way halo designed to test for kinematic substructure caused by destruction of accreted satellites. We use the Washington photometric system to identify halo stars efficiently for spectroscopic followup. Tracers include halo giants (detectable out to more than 100 kpc), blue horiz...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119482906
gr-qc/0001086
2000-01-27
How much energy do closed timelike curves in 2+1 spacetimes need?
By noticing that, in open 2+1 gravity, polarized surfaces cannot converge in the presence of timelike total energy momentum (except for a rotation of 2 pi), we give a simple argument which shows that, quite generally, closed timelike curves cannot exist in the presence of such energy condition.
[ "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m tiglio_1", "name": "Manuel Tiglio", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
36171880
gr-qc/0001087
2000-01-27
Exotic spacetimes, superconducting strings with linear momentum, and (not quite) all that
We derive the general exact vacuum metrics associated with a stationary (non static), non rotating, cylindrically symmetric source. An analysis of the geometry described by these vacuum metrics shows that they contain a subfamily of metrics that, although admitting a consistent time orientation, display "exotic" proper...
[ "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "r gleiser_1", "name": "Reinaldo [\"J\"] Gleiser", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m tiglio_1", "name": "Manuel Tiglio", "publication_history": null, "h_index": null, "num_papers...
null
18737347
astro-ph/0001500
2000-01-28
The Host Galaxy of the Lensed Quasar Q 0957+561
Infrared images of the Q 0957+561 gravitational lens obtained with the Hubble Space Telescope show two large (\sim 5 arcsec) lensed images of the z_s=1.41 quasar host galaxy. Parts of the host galaxy are doubly-imaged like the quasar, while other parts are quadruply-imaged. The distortions of the host galaxy offer the ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12185826
cond-mat/0001410
2000-01-28
Three-Dimensional Elastic Compatibility: Twinning in Martensites
We show how the St.Venant compatibility relations for strain in three dimensions lead to twinning for the cubic to tetragonal transition in martensitic materials within a Ginzburg-Landau model in terms of the six components of the symmetric strain tensor. The compatibility constraints generate an anisotropic long-range...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16467419
quant-ph/0001106
2000-01-28
Quantum Computation by Adiabatic Evolution
We give a quantum algorithm for solving instances of the satisfiability problem, based on adiabatic evolution. The evolution of the quantum state is governed by a time-dependent Hamiltonian that interpolates between an initial Hamiltonian, whose ground state is easy to construct, and a final Hamiltonian, whose ground s...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119409852
hep-ph/0001299
2000-01-28
Casimir scaling as a test of QCD vacuum
Recent accurate measurements of static potentials between sources in various representations of the gauge group SU(3) performed by G.Bali provide a crucial test of the QCD vacuum models and different approaches to confinement. The Casimir scaling of the potential observed for all measured distances implies strong suppr...
[ "hep-ph", "hep-lat", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17237156
cond-mat/0001444
2000-01-31
Phase Ordering in Chaotic Map Lattices with Additive Noise
We present some result about phase separation in coupled map lattices with additive noise. We show that additive noise acts as an ordering agent in this class of systems. In particular, in the weak coupling region, a suitable quantity of noise leads to complete ordering. Extrapolating our results at small coupling, we ...
[ "cond-mat.dis-nn", "nlin.CD" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l angelini_2", "name": "Leonardo Angelini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m pellicoro_1", "name": "Mario Pellicoro", "publication_history": null, "h_index": null, "num_papers"...
null
18190309
cond-mat/0001458
2000-01-31
Classes of behavior of small-world networks
Small-world networks are the focus of recent interest because they appear to circumvent many of the limitations of either random networks or regular lattices as frameworks for the study of interaction networks of complex systems. Here, we report an empirical study of the statistical properties of a variety of diverse r...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16345659
cond-mat/0001445
2000-01-31
Clustering data by inhomogeneous chaotic map lattices
A new approach to clustering, based on the physical properties of inhomogeneous coupled chaotic maps, is presented. A chaotic map is assigned to each data-point and short range couplings are introduced. The stationary regime of the system corresponds to a macroscopic attractor independent of the initial conditions. The...
[ "cond-mat.stat-mech", "astro-ph", "nlin.CD", "physics.data-an" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "l angelini_2", "name": "Leonardo Angelini", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "f carlo_1", "name": "F. [\"De\"] Carlo", "publication_history": null, "h_index": null, "num_papers": ...
null
14050645
astro-ph/0001527
2000-01-31
Structure and Evolution of the Envelopes of Deeply Embedded Massive Young Stars
The physical structure of the envelopes around a sample of fourteen massive (1000-100,000 solar L) young stars is investigated on 100- 100,000 AU scales using maps and spectra in submillimeter continuum and lines of C17O, CS and H2CO. The total column densities and the temperature profiles are obtained by fitting self-...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1858764
astro-ph/0002039
2000-02-02
Keck Speckle Imaging of the White Dwarf G29-38: No Brown Dwarf Companion Detected
The white dwarf Giclas 29-38 has attracted much attention due to its large infrared excess and the suggestion that excess might be due to a companion brown dwarf. We observed this object using speckle interferometry at the Keck telescope, obtaining diffraction-limited resolution (55 milliarcseconds) at K band, and foun...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
17277090
astro-ph/0002051
2000-02-02
The intragroup medium in loose groups of galaxies
We have used the ROSAT PSPC to study the properties of a sample of 24 X-ray bright galaxy groups, representing the largest sample examined in detail to date. Hot plasma models are fitted to the spectral data to derive temperatures, and modified King models are used to characterise the surface brightness profiles. In ag...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10898886
astro-ph/0002041
2000-02-02
Cosmic Ray Rejection by Linear Filtering of Single Images
We present a convolution-based algorithm for finding cosmic rays in single well-sampled astronomical images. The spatial filter used is the point spread function (approximated by a Gaussian) minus a scaled delta function, and cosmic rays are identified by thresholding the filtered image. This filter searches for featur...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
117429527
cond-mat/0002026
2000-02-02
Thermodynamically consistent mesoscopic fluid particle models for a van der Waals fluid
The GENERIC structure allows for a unified treatment of different discrete models of hydrodynamics. We first propose a finite volume Lagrangian discretization of the continuum equations of hydrodynamics through the Voronoi tessellation. We then show that a slight modification of these discrete equations has the GENERIC...
[ "cond-mat.stat-mech", "cond-mat.soft" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m serrano_2", "name": "Mar Serrano", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p español_1", "name": "Pep Español", "publication_history": null, "h_index": null, "num_papers": null, "...
null
18664673
astro-ph/0002082
2000-02-03
The entropy and energy of intergalactic gas in galaxy clusters
Studies of the X-ray surface brightness profiles of clusters, coupled with theoretical considerations, suggest that the breaking of self-similarity in the hot gas results from an `entropy floor', established by some heating process, which affects the structure of the intracluster gas strongly in lower mass systems. Fit...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
30264583
cond-mat/0002055
2000-02-03
Spin and link overlaps in 3-dimensional spin glasses
Excitations of three-dimensional spin glasses are computed numerically. We find that one can flip a finite fraction of an LxLxL lattice with an O(1) energy cost, confirming the mean field picture of a non-trivial spin overlap distribution P(q). These low energy excitations are not domain-wall-like, rather they are topo...
[ "cond-mat.dis-nn", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "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 Martin", "publication_history": null, "h_index": null, "num_papers": nul...
null
119383192
hep-ex/0002008
2000-02-03
Search for new Physics in rare B Decays
A search for the decay B+- to K+-K+-pi-+ was performed using data collected by the OPAL detector at LEP. These decays are strongly suppressed in the Standard Model but could occur with a higher branching ratio in supersymmetric models, especially in those with R-parity violating couplings. No evidence for a signal was ...
[ "hep-ex" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
260444879
astro-ph/0002102
2000-02-04
The NASA Astrophysics Data System: The Search Engine and its User Interface
The ADS Abstract and Article Services provide access to the astronomical literature through the World Wide Web (WWW). The forms based user interface provides access to sophisticated searching capabilities that allow our users to find references in the fields of Astronomy, Physics/Geophysics, and astronomical Instrument...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g eichhorn_1", "name": "Günther Eichhorn", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m kurtz_2", "name": "Michael [\"J.\"] Kurtz", "publication_history": null, "h_index": null, "num_paper...
null
310868
astro-ph/0002103
2000-02-04
The NASA Astrophysics Data System: Data Holdings
Since its inception in 1993, the ADS Abstract Service has become an indispensable research tool for astronomers and astrophysicists worldwide. In those seven years, much effort has been directed toward improving both the quantity and the quality of references in the database. From the original database of approximately...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "c grant_1", "name": "Carolyn [\"S.\"] Grant", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a accomazzi_1", "name": "Alberto Accomazzi", "publication_history": null, "h_index": null, "num_pap...
null
2631342
astro-ph/0002110
2000-02-04
The SIMBAD astronomical database
Simbad is the reference database for identification and bibliography of astronomical objects. It contains identifications, `basic data', bibliography, and selected observational measurements for several million astronomical objects. Simbad is developed and maintained by CDS, Strasbourg. Building the database contents i...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
7182316
astro-ph/0002105
2000-02-04
The NASA Astrophysics Data System: Architecture
The powerful discovery capabilities available in the ADS bibliographic services are possible thanks to the design of a flexible search and retrieval system based on a relational database model. Bibliographic records are stored as a corpus of structured documents containing fielded data and metadata, while discipline-sp...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a accomazzi_1", "name": "Alberto Accomazzi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g eichhorn_1", "name": "Günther Eichhorn", "publication_history": null, "h_index": null, "num_papers...
null
17377096
astro-ph/0002122
2000-02-05
The VizieR database of Astronomical Catalogues
VizieR is a database grouping in an homogeneous way thousands of astronomical catalogues gathered since decades by the Centre de Donnees de Strasbourg (CDS) and participating institutes. The history and current status of this large collection is briefly presented, and the way these catalogues are being standardized to ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14253090
cond-mat/0002093
2000-02-07
Statistical mechanics approach to the phase unwrapping problem
The use of Mean-Field theory to unwrap principal phase patterns has been recently proposed. In this paper we generalize the Mean-Field approach to process phase patterns with arbitrary degree of undersampling. The phase unwrapping problem is formulated as that of finding the ground state of a locally constrained, finit...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s stramaglia_1", "name": "Sebastiano Stramaglia", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a refice_0", "name": "Alberto Refice", "publication_history": null, "h_index": null, "num_paper...
null
10010933
math/0002054
2000-02-08
F-regular and F-pure rings vs. log terminal and log canonical singularities
In this paper, we investigate the relationship of F-regular (resp. F-pure) rings and log terminal (resp. log canonical) singularities. Also, we extend the notions of F-regularity and F-purity to "F-singularities of pairs." The notions of F-regular and F-pure rings in characteristic $p>0$ are characterized by a splittin...
[ "math.AG", "math.AC" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14158960
hep-th/0002074
2000-02-09
p-Gerbes and Extended Objects in String Theory
p-Gerbes are a generalization of bundles that have (p+2)-form field strengths. We develop their properties and use them to show that every theory of p-gerbes can be reinterpreted as a gauge theory containing p-dimensional extended objects. In particular, we show that every closed (p+2)-form with integer cohomology is t...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "y zunger_1", "name": "Yonatan Zunger", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
16492288
astro-ph/0002234
2000-02-10
The SCUBA Local Universe Galaxy Survey I: First Measurements of the Submillimetre Luminosity and Dust Mass Functions
We have used SCUBA to observe a complete sample of 104 galaxies selected at 60 microns from the IRAS BGS and we present here the 850 micron measurements. Fitting the 60,100 and 850 micron fluxes with a single temperature dust model gives the sample mean temperature T=36 K and beta = 1.3. We do not rule out the possibil...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16316258
hep-ph/0002115
2000-02-10
Phenomenology of stops, sbottoms, tau-sneutrinos, and staus at an e+e- Linear Collider
We discuss production and decays of stops, sbottoms, tau-sneutrinos, and staus in e+e- annihilation in the energy range \sqrt{s} = 0.5-1 TeV. We present numerical predictions within the Minimal Supersymmetric Standard Model for cross sections and decay rates, including one-loop radiative corrections as well as initial ...
[ "hep-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a bartl_1", "name": "Alfred Bartl", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h eberl_1", "name": "Helmut Eberl", "publication_history": null, "h_index": null, "num_papers": null, "nu...
null
14782250
astro-ph/0002232
2000-02-10
Neutron Star Structure and the Equation of State
The structure of neutron stars is considered from theoretical and observational perspectives. We demonstrate an important aspect of neutron star structure: the neutron star radius is primarily determined by the behavior of the pressure of matter in the vicinity of nuclear matter equilibrium density. In the event that e...
[ "astro-ph", "nucl-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null