corpus_id
stringlengths
3
9
arxiv_id
stringlengths
9
16
date
stringdate
1989-10-26 00:00:00
2024-09-30 00:00:00
title
stringlengths
4
240
abstract
stringlengths
3
3.15k
categories
listlengths
1
10
topics
listlengths
0
15
⌀
roles
listlengths
1
4
key_references
listlengths
0
10
⌀
authors
listlengths
1
5.28k
⌀
citation_trajectory
listlengths
14
26
⌀
9297412
astro-ph/0702698
2007-02-26
Curious properties of the recycled pulsars and the potential of high precision timing
Binary and Millisecond pulsars have a great deal to teach us about stellar evolution and are invaluable tools for tests of relativistic theories of gravity. Our understanding of these objects has been transformed by large-scale surveys that have uncovered a great deal of new objects, exquisitely timed by ever-improving...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118916438
astro-ph/0702697
2007-02-26
A new algorithm for point spread function subtraction in high-contrast imaging: a demonstration with angular differential imaging
Direct imaging of exoplanets is limited by bright quasi-static speckles in the point spread function (PSF) of the central star. This limitation can be reduced by subtraction of reference PSF images. We have developed an algorithm to construct an optimized reference PSF image from a set of reference images. This image i...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13215905
math/0702799
2007-02-26
Minimal position and critical martingale convergence in branching random walks, and directed polymers on disordered trees
We establish a second-order almost sure limit theorem for the minimal position in a one-dimensional super-critical branching random walk, and also prove a martingale convergence theorem which answers a question of Biggins and Kyprianou [9]. Our method applies furthermore to the study of directed polymers on a disordere...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16231533
astro-ph/0702675
2007-02-26
Variable Stars in the Open Cluster NGC 2099 (M37)
Time-series CCD photometric observations of the intermediate-age open cluster NGC 2099 were performed to search for variable stars. We also carried out BV photometry to study physical properties of variables in the cluster. Using V-band time-series data, we carefully examined light variations of about 12,000 stars in t...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
8079498
quant-ph/0702219
2007-02-26
Optimal spin squeezing inequalities detect bound entanglement in spin models
We determine the complete set of generalized spin squeezing inequalities. These are entanglement criteria that can be used for the experimental detection of entanglement in a system of spin-1/2 particles in which the spins cannot be individually addressed. They can also be used to show the presence of bound entanglemen...
[ "quant-ph", "cond-mat.other", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g tóth_1", "name": "Géza Tóth", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c knapp_1", "name": "Christian Knapp", "publication_history": null, "h_index": null, "num_papers": null, "num...
null
14647602
cond-mat/0702595
2007-02-26
The rise of graphene
Graphene is a rapidly rising star on the horizon of materials science and condensed matter physics. This strictly two-dimensional material exhibits exceptionally high crystal and electronic quality and, despite its short history, has already revealed a cornucopia of new physics and potential applications, which are bri...
[ "cond-mat.mtrl-sci", "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12090072
math/0702773
2007-02-26
Polynomials that Sign Represent Parity and Descartes' Rule of Signs
A real polynomial $P(X_1,..., X_n)$ sign represents $f: A^n \to \{0,1\}$ if for every $(a_1, ..., a_n) \in A^n$, the sign of $P(a_1,...,a_n)$ equals $(-1)^{f(a_1,...,a_n)}$. Such sign representations are well-studied in computer science and have applications to computational complexity and computational learning theory...
[ "math.CO" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s basu_15", "name": "Saugata Basu", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "n bhatnagar_1", "name": "Nayantara Bhatnagar", "publication_history": null, "h_index": null, "num_papers": nu...
null
3026312
cond-mat/0702589
2007-02-26
Electrical switching of vortex core in a magnetic disk
A magnetic vortex is a curling magnetic structure realized in a ferromagnetic disk, which is a promising candidate of a memory cell for future nonvolatile data storage devices. Thus, understanding of the stability and dynamical behaviour of the magnetic vortex is a major requirement for developing magnetic data storage...
[ "cond-mat.mtrl-sci", "cond-mat.mes-hall" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
31960558
quant-ph/0702225
2007-02-26
Quantum entanglement
All our former experience with application of quantum theory seems to say: {\it what is predicted by quantum formalism must occur in laboratory}. But the essence of quantum formalism - entanglement, recognized by Einstein, Podolsky, Rosen and Schr\"odinger - waited over 70 years to enter to laboratories as a new resour...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
15418606
math/0702787
2007-02-26
Stochastic Hamiltonian dynamical systems
We use the global stochastic analysis tools introduced by P. A. Meyer and L. Schwartz to write down a stochastic generalization of the Hamilton equations on a Poisson manifold that, for exact symplectic manifolds, are characterized by a natural critical action principle similar to the one encountered in classical mecha...
[ "math.PR", "math.SG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
871941
hep-ex/0702044
2007-02-27
Observation of a resonance in the K$_s$p decay channel at a mass of 1765 MeV/c$^2$
We report on the observation of a K$_s$p resonance signal at a mass of 1765$\pm$5 MeV/c$^2$, with intrinsic width $\Gamma = 108\pm 22$ MeV/c$^2$, produced inclusively in $\Sigma^-$-nucleus interactions at 340 GeV/c in the hyperon beam experiment WA89 at CERN. The signal was observed in the kinematic region $x_F>0.7$, i...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m adamovich_0", "name": "M. [\"I.\"] Adamovich", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "y alexandrov_1", "name": "Yu. [\"A.\"] Alexandrov", "publication_history": null, "h_index": null, ...
null
263786161
cs/0702157
2007-02-27
In Search of Simplicity: A Self-Organizing Multi-Source Multicast Overlay
Multicast communication primitives have broad utility as building blocks for distributed applications. The challenge is to create and maintain the distributed structures that support these primitives while accounting for volatile end nodes and variable network characteristics. Most solutions proposed to date rely on co...
[ "cs.DC", "cs.NI", "cs.PF" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "464255", "num_citations": null } ]
[ { "author_id": "m ripeanu_1", "name": "Matei Ripeanu", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a iamnitchi_1", "name": "Adriana Iamnitchi", "publication_history": null, "h_index": null, "num_papers": n...
null
3204763
cs/0702158
2007-02-27
Joint Design and Separation Principle for Opportunistic Spectrum Access in the Presence of Sensing Errors
We address the design of opportunistic spectrum access (OSA) strategies that allow secondary users to independently search for and exploit instantaneous spectrum availability. Integrated in the joint design are three basic components: a spectrum sensor that identifies spectrum opportunities, a sensing strategy that det...
[ "cs.NI" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "y chen_517", "name": "Yunxia Chen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "q zhao_67", "name": "Qing Zhao", "publication_history": null, "h_index": null, "num_papers": null, "num_c...
null
207223558
quant-ph/0702255
2007-02-27
The Jamio{\l}kowski isomorphism and a conceptionally simple proof for the correspondence between vectors having Schmidt number $k$ and $k$-positive maps
Positive maps which are not completely positive are used in quantum information theory as witnesses for convex sets of states, in particular as entanglement witnesses and more generally as witnesses for states having Schmidt number not greater than k. It is known that such witnesses are related to k-positive maps. In t...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1470518
cond-mat/0702628
2007-02-27
Nature of the Monoclinic to Cubic Phase Transition in the Fast Oxygen Ion Conductor La2Mo2O9 (LAMOX)
La2Mo2O9 (LAMOX) is a fast oxygen ion conductor which shows high oxygen ion conductivities comparable to those of yttria-sabilized zirconia (YSZ) . LAMOX is subject to a structural phase transition from the non-conductive monoclinic form to the highly-conductive cubic form at about 580C. The origin of the conductivity ...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l malavasi_0", "name": "Lorenzo Malavasi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h kim_112", "name": "Hyunjeong Kim", "publication_history": null, "h_index": null, "num_papers": null,...
null
54050729
quant-ph/0702249
2007-02-27
Time-dependent density-functional theory for open systems
By introducing the self-energy density functionals for the dissipative interactions between the reduced system and its environment, we develop a time-dependent density-functional theory formalism based on an equation of motion for the Kohn-Sham reduced single-electron density matrix of the reduced system. Two approxima...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "x zheng_75", "name": "Xiao Zheng", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "f wang_132", "name": "Fan Wang", "publication_history": null, "h_index": null, "num_papers": null, "num_ci...
null
273247518
astro-ph/0702735
2007-02-28
Hyperfast pulsars as the remnants of massive stars ejected from young star clusters
Recent proper motion and parallax measurements for the pulsar PSR B1508+55 indicate a transverse velocity of ~1100 km/s, which exceeds earlier measurements for any neutron star. The spin-down characteristics of PSR B1508+55 are typical for a non-recycled pulsar, which implies that the velocity of the pulsar cannot have...
[ "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "315189", "num_citations": null }, { "corpus_id": "75787", "num_citations": null }, { "corpus_id": "7533680", "num_citations": null }, { "corpus_id": "16752089", "num_citations": null }, { "corpus_id": "5412238", "num_citations": null }, { ...
[ { "author_id": "v gvaramadze_0", "name": "Vasilii [\"V.\"] Gvaramadze", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "a gualandris_1", "name": "Alessia Gualandris", "publication_history": null, "h_index": null, ...
null
18932396
math/0702879
2007-02-28
Lower bounds for the density of locally elliptic It\^{o} processes
We give lower bounds for the density $p_T(x,y)$ of the law of $X_t$, the solution of $dX_t=\sigma (X_t) dB_t+b(X_t) dt,X_0=x,$ under the following local ellipticity hypothesis: there exists a deterministic differentiable curve $x_t, 0\leq t\leq T$, such that $x_0=x, x_T=y$ and $\sigma \sigma ^*(x_t)>0,$ for all $t\in \...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13976857
cs/0703005
2007-03-01
State Amplification
We consider the problem of transmitting data at rate R over a state dependent channel p(y|x,s) with the state information available at the sender and at the same time conveying the information about the channel state itself to the receiver. The amount of state information that can be learned at the receiver is captured...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
117747922
cond-mat/0703035
2007-03-01
Nonlinear Electrokinetics at large applied voltages
The classical theory of electrokinetic phenomena assumes a dilute solution of point-like ions in chemical equilibrium with a surface whose double-layer voltage is of order the thermal voltage, $k_BT/e = 25$ mV. In nonlinear ``induced-charge'' electrokinetic phenomena, such as AC electro-osmosis, several Volts $\approx ...
[ "cond-mat.other" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m bazant_1", "name": "Martin [\"Z.\"] Bazant", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m kilic_2", "name": "Mustafa [\"Sabri\"] Kilic", "publication_history": null, "h_index": null, "nu...
null
15087253
astro-ph/0703030
2007-03-01
Multi-wavelength study of the gravitational lens system RXS J1131-1231: III. Long slit spectroscopy: micro-lensing probes the QSO structure
(ABRIDGED) Aims: We discuss and characterize micro-lensing among the 3 brightest lensed images (A-B-C) of the gravitational lens system RXS J1131-1231 (a quadruply imaged AGN) by means of long slit optical and NIR spectroscopy. Qualitative constraints on the size of different emission regions are derived. Methods: We d...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
262841506
hep-ex/0703004
2007-03-02
Search for Lepton Flavour Violation in ep Collisions at HERA
A search for the lepton flavour violating processes ep->mu X and ep -> tau X is performed with the H1 experiment at HERA. Final states with a muon or tau and a hadronic jet are searched for in a data sample corresponding to an integrated luminosity of 66.5 pb-1 for e^+ p collisions and 13.7 pb^-1 for e^- p collisions a...
[ "hep-ex" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a aktas_1", "name": "Adil Aktas", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c alexa_1", "name": "Calin Alexa", "publication_history": null, "h_index": null, "num_papers": null, "num_c...
null
2833
cs/0703010
2007-03-02
An optimal bifactor approximation algorithm for the metric uncapacitated facility location problem
We obtain a 1.5-approximation algorithm for the metric uncapacitated facility location problem (UFL), which improves on the previously best known 1.52-approximation algorithm by Mahdian, Ye and Zhang. Note, that the approximability lower bound by Guha and Khuller is 1.463. An algorithm is a {\em ($\lambda_f$,$\lambda_c...
[ "cs.DS" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "j byrka_1", "name": "Jaroslaw Byrka", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k aardal_1", "name": "Karen [\"I.\"] Aardal", "publication_history": null, "h_index": null, "num_papers": n...
null
3100449
astro-ph/0703095
2007-03-05
The COSMOS Survey: Hubble Space Telescope / Advanced Camera for Surveys (HST/ACS) Observations and Data Processing
We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys / Wide Field Channel (ACS/WFC) observations of the COSMOS field, including the data calibration and processing procedures. We obtained a total of 583 orbits of HST ACS/WFC imaging in the F814W filter, covering a field that is 1.64 s...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10873952
cs/0703022
2007-03-05
Rate of Channel Hardening of Antenna Selection Diversity Schemes and Its Implication on Scheduling
For a multiple antenna system, we compute the asymptotic distribution of antenna selection gain when the transmitter selects the transmit antenna with the strongest channel. We use this to asymptotically estimate the underlying channel capacity distributions, and demonstrate that unlike multiple-input/multiple-output (...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "d bai_4", "name": "Dongwoon Bai", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p mitran_1", "name": "Patrick Mitran", "publication_history": null, "h_index": null, "num_papers": null, "n...
null
14603453
hep-ph/0703056
2007-03-05
Natural Dark Matter from an Unnatural Higgs Boson and New Colored Particles at the TeV Scale
The thermal relic abundance of Dark Matter motivates the existence of new electroweak scale particles, independent of naturalness considerations. However, most unnatural Dark Matter models do not ensure the presence of new particles charged under SU(3)_C, resulting in challenging LHC phenomenology. Here, we present a c...
[ "hep-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14278241
cond-mat/0703129
2007-03-05
Reaction-diffusion processes and metapopulation models in heterogeneous networks
Dynamical reaction-diffusion processes and meta-population models are standard modeling approaches for a wide variety of phenomena in which local quantities - such as density, potential and particles - diffuse and interact according to the physical laws. Here, we study the behavior of two basic reaction-diffusion proce...
[ "cond-mat.stat-mech", "q-bio.OT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119020610
gr-qc/0703028
2007-03-05
Towards adiabatic waveforms for inspiral into Kerr black holes: I. A new model of the source for the time domain perturbation equation
We revisit the problem of the emission of gravitational waves from a test mass orbiting and thus perturbing a Kerr black hole. The source term of the Teukolsky perturbation equation contains a Dirac delta function which represents a point particle. We present a technique to effectively model the delta function and its ...
[ "gr-qc", "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
53363683
astro-ph/0703084
2007-03-05
Discovery of very high energy gamma-ray emission from the low-frequency peaked BL Lacertae object BL Lacertae
The MAGIC collaboration observed BL Lacertae for 22.2 hr during 2005 August to December and for 26 hr during 2006 July to September. The source is the historical prototype and eponym of a class of low-frequency peaked BL Lacertae (LBL) objects. A very high energy (VHE) gamma-ray signal was discovered with a 5.1 sigma e...
[ "astro-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[ { "corpus_id": "14783371", "num_citations": null }, { "corpus_id": "3188143", "num_citations": null }, { "corpus_id": "1032032", "num_citations": null } ]
[ { "author_id": "j albert_2", "name": "Justin [\"E\"] Albert", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "e aliu_1", "name": "Ester Aliu", "publication_history": null, "h_index": null, "num_papers": null, ...
null
3265989
cs/0703024
2007-03-06
Algorithmic Information Theory: a brief non-technical guide to the field
This article is a brief guide to the field of algorithmic information theory (AIT), its underlying philosophy, and the most important concepts. AIT arises by mixing information theory and computation theory to obtain an objective and absolute notion of information in an individual object, and in so doing gives rise to ...
[ "cs.IT", "cs.CC", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
41788246
physics/0703061
2007-03-06
Spectral and network methods in the analysis of correlation matrices of stock returns
Correlation matrices inferred from stock return time series contain information on the behaviour of the market, especially on clusters of highly correlating stocks. Here we study a subset of New York Stock Exchange (NYSE) traded stocks and compare three different methods of analysis: i) spectral analysis, i.e. investig...
[ "physics.soc-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "t heimo_0", "name": "Tapio Heimo", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j saramaki_1", "name": "Jari Saramaki", "publication_history": null, "h_index": null, "num_papers": null, ...
null
119351072
astro-ph/0703108
2007-03-06
Mining the SDSS archive. I. Photometric redshifts in the nearby universe
We present a supervised neural network approach to the determination of photometric redshifts. The method was tuned to match the characteristics of the Sloan Digital Sky Survey and it exploits the spectroscopic redshifts provided by this unique survey. In order to train, validate and test the networks we used two galax...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
261582946
cond-mat/0703164
2007-03-06
Non-equilibrium dynamics of spin facilitated glass models
We consider the dynamics of spin facilitated models of glasses in the non-equilibrium aging regime following a sudden quench from high to low temperatures. We briefly review known results obtained for the broad class of kinetically constrained models, and then present new results for the behaviour of the one-spin facil...
[ "cond-mat.stat-mech", "cond-mat.dis-nn", "cond-mat.soft" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "s léonard_1", "name": "Sébastien Léonard", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "p mayer_1", "name": "Peter Mayer", "publication_history": null, "h_index": null, "num_papers": null, ...
null
10049446
cs/0703033
2007-03-07
Time Warp Edit Distance with Stiffness Adjustment for Time Series Matching
In a way similar to the string-to-string correction problem we address time series similarity in the light of a time-series-to-time-series-correction problem for which the similarity between two time series is measured as the minimum cost sequence of "edit operations" needed to transform one time series into another. T...
[ "cs.IR" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "p marteau_1", "name": "Pierre-François Marteau", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
9481164
astro-ph/0703137
2007-03-07
Eclipsing binaries in the MACHO database: New periods and classifications for 3031 systems in the Large Magellanic Cloud
Eclipsing binaries offer a unique opportunity to determine fundamental physical parameters of stars using the constraints on the geometry of the systems. Here we present a reanalysis of publicly available two-color observations of about 6800 stars in the Large Magellanic Cloud, obtained by the MACHO project between 199...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
57305
cs/0703034
2007-03-07
Nanoscale Communication with Brownian Motion
In this paper, the problem of communicating using chemical messages propagating using Brownian motion, rather than electromagnetic messages propagating as waves in free space or along a wire, is considered. This problem is motivated by nanotechnological and biotechnological applications, where the energy cost of electr...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "a eckford_1", "name": "Andrew [\"W.\"] Eckford", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
26430584
astro-ph/0703157
2007-03-07
SDSS Standard Star Catalog for Stripe 82: the Dawn of Industrial 1% Optical Photometry
We describe a standard star catalog constructed using multiple SDSS photometric observations (at least four per band, with a median of ten) in the $ugriz$ system. The catalog includes 1.01 million non-variable unresolved objects from the equatorial stripe 82 ($|\delta_{J2000}|<$ 1.266$^\circ$) in the RA range 20h 34m t...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16071370
math/0703185
2007-03-07
Regularity and index theory for Dirac-Schr\"{o}dinger systems with Lipschitz coefficients
Dirac-Schr\"{o}dinger systems play a central role when modeling Dirac bundles and Dirac-Schr\"{o}dinger operators near the boundary, along ends or near other singularities of Riemannian manifolds. In this article we develop the Fredholm theory of Dirac-Schr\"{o}dinger systems with Lipschitz coefficients.
[ "math.AP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
116953027
cond-mat/0703213
2007-03-08
Comment on "Irreversibility and Fluctuation Theorem in Stationary Time Series"
In their recent paper [Phys. Rev. Lett. 98, 094101 (2007)], A. Porporato et al. studied the irreversibility and fluctuation theorem for stationary time series. In this comment, we point out that the fluctuation theorem is in fact the trivial outcome of a symmetry operation, and hence its physical contect is less convin...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "c broeck_1", "name": "Chris [\"Van\",\"Den\"] Broeck", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "b cleuren_1", "name": "Bart Cleuren", "publication_history": null, "h_index": null, "num_p...
null
17267978
cond-mat/0703199
2007-03-08
Inequalities for the Local Energy of Random Ising Models
We derive a rigorous lower bound on the average local energy for the Ising model with quenched randomness. The result is that the lower bound is given by the average local energy calculated in the absence of all interactions other than the one under consideration. The only condition for this statement to hold is that t...
[ "cond-mat.dis-nn", "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14875235
astro-ph/0703196
2007-03-08
Are the Magellanic Clouds on their First Passage about the Milky Way?
Recent proper motion measurements of the Large and Small Magellanic Clouds (LMC and SMC, respectively) by Kallivayalil et al (2006a,b) suggest that the 3D velocities of the Clouds are substantially higher (~100 km/s) than previously estimated and now approach the escape velocity of the Milky Way (MW). Previous studies ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15071957
astro-ph/0703180
2007-03-08
Gravitational recoil: signatures on the massive black hole population
In the last stages of a black hole merger, the binary can experience a recoil due to asymmetric emission of gravitational radiation. Recent numerical relativity simulations suggest that the recoil velocity can be as high as a few thousands kilometers per second for particular configurations. We consider here the effect...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16257705
astro-ph/0703178
2007-03-08
The structure of the nuclear stellar cluster of the Milky Way
We present high-resolution seeing limited and AO NIR imaging observations of the stellar cluster within about one parsec of Sgr A*, the massive black hole at the centre of the Milky Way. Stellar number counts and the diffuse background light density were extracted from these observations in order to examine the structu...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16329476
astro-ph/0703177
2007-03-08
High-resolution simulations of clump-clump collisions using SPH with Particle Splitting
We investigate, by means of numerical simulations, the phenomenology of star formation triggered by low-velocity collisions between low-mass molecular clumps. The simulations are performed using an SPH code which satisfies the Jeans condition by invoking On-the-Fly Particle Splitting. Clumps are modelled as stable trun...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
10793389
math/0703240
2007-03-08
Central limit theorems for multiple stochastic integrals and Malliavin calculus
We give a new characterization for the convergence in distribution to a standard normal law of a sequence of multiple stochastic integrals of a fixed order with variance one, in terms of the Malliavin derivatives of the sequence. We extend our result to the multidimensional case and prove a weak convergence result for ...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12134967
cs/0703035
2007-03-08
On the Distortion SNR Exponent of Some Layered Transmission Schemes
We consider the problem of joint source-channel coding for transmitting K samples of a complex Gaussian source over T = bK uses of a block-fading multiple input multiple output (MIMO) channel with M transmit and N receive antennas. We consider the case when we are allowed to code over L blocks. The channel gain is assu...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
627941
astro-ph/0703223
2007-03-09
Nonthermal Synchrotron Radiation from Gamma Ray Burst External Shocks and the X-ray Flares Observed with Swift
An analysis of the interaction between a spherical relativistic blast-wave shell and a stationary cloud with a spherical cap geometry is performed assuming that the cloud width << x, where x is the distance of the cloud from the GRB explosion center. The interaction is divided into three phases: (1) a collision phase w...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118897488
cond-mat/0703237
2007-03-09
The multi-configurational time-dependent Hartree method for bosons: Many-body dynamics of bosonic systems
The evolution of Bose-Einstein condensates is amply described by the time-dependent Gross-Pitaevskii mean-field theory which assumes all bosons to reside in a single time-dependent one-particle state throughout the propagation process. In this work, we go beyond mean-field and develop an essentially-exact many-body the...
[ "cond-mat.other" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15836624
astro-ph/0703210
2007-03-09
Astrophysical and Cosmological Information from Large-scale sub-mm Surveys of Extragalactic Sources
We present a quantitative analysis of the astrophysical and cosmological information that can be extracted from the many important wide-area, shallow surveys that will be carried out in the next few years. Our calculations combine the predictions of the physical model by Granato et al. (2004) for the formation and evol...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3204035
cs/0703045
2007-03-09
Performance Bounds on Sparse Representations Using Redundant Frames
We consider approximations of signals by the elements of a frame in a complex vector space of dimension $N$ and formulate both the noiseless and the noisy sparse representation problems. The noiseless representation problem is to find sparse representations of a signal $\mathbf{r}$ given that such representations exist...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m akçakaya_2", "name": "Mehmet Akçakaya", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "v tarokh_1", "name": "Vahid Tarokh", "publication_history": null, "h_index": null, "num_papers": null, ...
null
2155489
math/0703265
2007-03-09
Large deviations for random walks under subexponentiality: the big-jump domain
For a given one-dimensional random walk $\{S_n\}$ with a subexponential step-size distribution, we present a unifying theory to study the sequences $\{x_n\}$ for which $\mathsf{P}\{S_n>x\}\sim n\mathsf{P}\{S_1>x\}$ as $n\to\infty$ uniformly for $x\ge x_n$. We also investigate the stronger "local" analogue, $\mathsf{P}\...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3262734
cs/0703042
2007-03-09
Recommender System for Online Dating Service
Users of online dating sites are facing information overload that requires them to manually construct queries and browse huge amount of matching user profiles. This becomes even more problematic for multimedia profiles. Although matchmaking is frequently cited as a typical application for recommender systems, there is ...
[ "cs.IR", "cs.SE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
1852122
cond-mat/0703239
2007-03-09
Parallel Self-Consistent-Field Calculations via Chebyshev-Filtered Subspace Acceleration
Solving the Kohn-Sham eigenvalue problem constitutes the most computationally expensive part in self-consistent density functional theory (DFT) calculations. In a previous paper, we have proposed a nonlinear Chebyshev-filtered subspace iteration method, which avoids computing explicit eigenvectors except at the first S...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15510924
math/0703300
2007-03-11
Case-Control Survival Analysis with a General Semiparametric Shared Frailty Model - a Pseudo Full Likelihood Approach
In this work we deal with correlated failure time (age at onset) data arising from population-based case-control studies, where case and control probands are selected by population-based sampling and an array of risk factor measures is collected for both cases and controls and their relatives. Parameters of interest ar...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "18325731", "num_citations": null }, { "corpus_id": "88517255", "num_citations": null } ]
[ { "author_id": "m gorfine_1", "name": "Malka Gorfine", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d zucker_1", "name": "David [\"M.\"] Zucker", "publication_history": null, "h_index": null, "num_papers": ...
null
119058778
cond-mat/0703277
2007-03-11
Is Sharma-Mittal entropy really a step beyond Tsallis and Renyi entropies?
We studied the Sharma-Mittal relative entropy and showed that its physical meaning is the free energy difference between the off-equilibrium and equilibrium distributions. Unfortunately, Sharma-Mittal relative entropy may acquire this physical interpretation only in the limiting case when both parameters approach to 1 ...
[ "cond-mat.stat-mech" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119081532
cond-mat/0703307
2007-03-12
Molecular Dynamics Simulation of Ga Penetration along Sigma 5 Symmetric Tilt Grain Boundaries in an Al Bicrystal
Liquid metal embrittlement (LME) is a common feature of systems in which a low melting point liquid metal is in contact with another, higher melting point, polycrystalline metal. While different systems exhibit different LME fracture characteristics, the penetration of nanometer-thick liquid metal films along the grain...
[ "cond-mat.mtrl-sci" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "h nam_8", "name": "Ho [\"Seok\"] Nam", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d srolovitz_1", "name": "David [\"J.\"] Srolovitz", "publication_history": null, "h_index": null, "num_pap...
null
14134106
cs/0703055
2007-03-12
Support and Quantile Tubes
This correspondence studies an estimator of the conditional support of a distribution underlying a set of i.i.d. observations. The relation with mutual information is shown via an extension of Fano's theorem in combination with a generalization bound based on a compression argument. Extensions to estimating the conditi...
[ "cs.IT", "cs.LG", "math.IT" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "k pelckmans_1", "name": "Kristiaan Pelckmans", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "j brabanter_1", "name": "Jos [\"De\"] Brabanter", "publication_history": null, "h_index": null, "n...
null
9759614
astro-ph/0703255
2007-03-12
Spectral Energy Distributions of Hard X-ray selected AGNs in the XMDS Survey
We present the spectral energy distributions (SEDs) of a hard X-ray selected sample. The sample contains 136 sources with F(2-10 keV)>10^-14 erg/cm^2/s and 132 are AGNs. The sources are detected in a 1 square degree area of the XMM-Newton-Medium Deep Survey where optical data from the VVDS, CFHTLS surveys, and infrared...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
12104713
math/0703355
2007-03-12
Rate of Converrgence for ergodic continuous Markov processes : Lyapunov versus Poincare
We study the relationship between two classical approaches for quantitative ergodic properties : the first one based on Lyapunov type controls and popularized by Meyn and Tweedie, the second one based on functional inequalities (of Poincar\'e type). We show that they can be linked through new inequalities (Lyapunov-Poi...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18560890
q-bio/0703023
2007-03-12
Sensory Substitution : Perception Dedicated to Action
Paul Bach Y Rita [1] is the precursor of sensory substitutions. He started thirty years ago using visuo-tactile prostheses with the intent of satisfying blind people. These prostheses, called Tactile Vision Substitution Systems (TVSS), transform a sensory input from a given modality (vision) into another modality (touc...
[ "q-bio.NC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "b hardy_2", "name": "Bianca Hardy", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "m ramanantsoa_0", "name": "Marie-Martine Ramanantsoa", "publication_history": null, "h_index": null, "num_pap...
null
10366451
hep-ph/0703130
2007-03-12
Collider signatures of gravitino dark matter with a sneutrino NLSP
For gravitino dark matter with conserved R-parity and mass in the GeV range, very strong constraints from Big Bang Nucleosynthesis exclude the popular NLSP candidates like neutralino and charged sleptons. In this letter we therefore draw attention to the case of a sneutrino NLSP, that is naturally realised in the conte...
[ "hep-ph", "astro-ph" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "18173094", "num_citations": null } ]
[ { "author_id": "l covi_1", "name": "Laura Covi", "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_papers": null, "num_c...
null
3205136
cond-mat/0703326
2007-03-13
Periodic boundary conditions on the pseudosphere
We provide a framework to build periodic boundary conditions on the pseudosphere (or hyperbolic plane), the infinite two-dimensional Riemannian space of constant negative curvature. Starting from the common case of periodic boundary conditions in the Euclidean plane, we introduce all the needed mathematical notions and...
[ "cond-mat.stat-mech", "math-ph", "math.MP" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
265122763
1408.2028
2007-03-13
Bandit Algorithms for Tree Search
Bandit based methods for tree search have recently gained popularity when applied to huge trees, e.g. in the game of go [6]. Their efficient exploration of the tree enables to re- turn rapidly a good value, and improve preci- sion if more time is provided. The UCT algo- rithm [8], a tree search method based on Up- per ...
[ "cs.LG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118511909
quant-ph/0703110
2007-03-13
Realization of continuous-outcome measurements on finite dimensional quantum systems
This note contains the complete mathematical proof of the main Theorem of the paper "How continuous measurements in finite dimension are actually discrete" (quant-ph/0702068), thus showing that in finite dimension any measurement with continuous set of outcomes can be simply realized by randomizing some classical param...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "g chiribella_1", "name": "Giulio Chiribella", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g d’ariano_1", "name": "Giacomo [\"Mauro\"] D’Ariano", "publication_history": null, "h_index": null, ...
null
119397500
physics/0703135
2007-03-13
Optimizing the Source Distribution in Fluid Mixing
A passive scalar is advected by a velocity field, with a nonuniform spatial source that maintains concentration inhomogeneities. For example, the scalar could be temperature with a source consisting of hot and cold spots, such that the mean temperature is constant. Which source distributions are best mixed by this velo...
[ "physics.flu-dyn" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "42048482", "num_citations": null }, { "corpus_id": "335690", "num_citations": null }, { "corpus_id": "32363350", "num_citations": null } ]
[ { "author_id": "j thiffeault_1", "name": "Jean-Luc Thiffeault", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "g pavliotis_1", "name": "Grigorios [\"A.\"] Pavliotis", "publication_history": null, "h_index": null,...
null
8816770
cs/0703063
2007-03-13
Convergence and Optimal Buffer Sizing for Window Based AIMD Congestion Control
We study the interaction between the AIMD (Additive Increase Multiplicative Decrease) congestion control and a bottleneck router with Drop Tail buffer. We consider the problem in the framework of deterministic hybrid models. First, we show that the hybrid model of the interaction between the AIMD congestion control and...
[ "cs.NI" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "k avrachenkov_1", "name": "Konstantin Avrachenkov", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "u ayesta_1", "name": "Urtzi Ayesta", "publication_history": null, "h_index": null, "num_paper...
null
8513485
math/0703377
2007-03-13
Nonlinear optimal control via occupation measures and LMI-relaxations
We consider the class of nonlinear optimal control problems (OCP) with polynomial data, i.e., the differential equation, state and control con- straints and cost are all described by polynomials, and more generally for OCPs with smooth data. In addition, state constraints as well as state and/or action constraints are ...
[ "math.OC" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "j lasserre_1", "name": "Jean [\"Bernard\"] Lasserre", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "d henrion_1", "name": "Didier Henrion", "publication_history": null, "h_index": null, "num_...
null
119437103
astro-ph/0703336
2007-03-13
VLBA measurement of the transverse velocity of the magnetar XTE J1810-197
We have obtained observations of the magnetar XTE J1810-197 with the Very Long Baseline Array at two epochs separated by 106 days, at wavelengths of 6 cm and 3.6 cm. Comparison of the positions yields a proper motion value of 13.5+-1.0 mas/yr at an equatorial position angle of 209.4+-2.4 deg (east of north). This value...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2376
cs/0703061
2007-03-13
Coding for Errors and Erasures in Random Network Coding
The problem of error-control in random linear network coding is considered. A ``noncoherent'' or ``channel oblivious'' model is assumed where neither transmitter nor receiver is assumed to have knowledge of the channel transfer characteristic. Motivated by the property that linear network coding is vector-space preserv...
[ "cs.IT", "cs.NI", "math.IT" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118137448
math/0703398
2007-03-14
Transformations between attractors of hyperbolic iterated function systems
This paper is in the form of an essay. It defines fractal tops and code space structures associated with set-attractors of hyperbolic iterated function systems (IFSs). The fractal top of an IFS is associated with a certain shift invariant subspace of code space, whence the entropy of the IFS, and of its set-attractor, ...
[ "math.DS" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "m barnsley_1", "name": "Michael [\"F.\"] Barnsley", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
16838995
astro-ph/0703337
2007-03-14
Formation and evolution of galaxy dark matter halos and their substructure
We use the ``Via Lactea'' simulation to study the co-evolution of a Milky Way-size LambdaCDM halo and its subhalo population. While most of the host halo mass is accreted over the first 6 Gyr in a series of major mergers, the physical mass distribution [not M_vir(z)] remains practically constant since z=1. The same is ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
3162673
hep-th/0703134
2007-03-14
Worldsheet Instantons, Torsion Curves, and Non-Perturbative Superpotentials
As a first step towards computing instanton-generated superpotentials in heterotic standard model vacua, we determine the Gromov-Witten invariants for a Calabi-Yau threefold with fundamental group pi_1(X)=Z_3 x Z_3. We find that the curves fall into homology classes in H_2(X,Z)=Z^3+(Z_3+Z_3). The unexpected appearance ...
[ "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
253329
cs/0703077
2007-03-14
Relational Abstract Domains for the Detection of Floating-Point Run-Time Errors
We present a new idea to adapt relational abstract domains to the analysis of IEEE 754-compliant floating-point numbers in order to statically detect, through abstract Interpretation-based static analyses, potential floating-point run-time exceptions such as overflows or invalid operations. In order to take the non-lin...
[ "cs.PL" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
119568874
math/0703442
2007-03-14
Operator integrals, spectral shift and spectral flow
We present a new and simple approach to the theory of multiple operator integrals that applies to unbounded operators affiliated with general von Neumann algebras. For semifinite von Neumann algebras we give applications to the Fr\'echet differentiation of operator functions that sharpen existing results, and establish...
[ "math.OA", "math.FA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
2503
cs/0703087
2007-03-15
Social Information Processing in Social News Aggregation
The rise of the social media sites, such as blogs, wikis, Digg and Flickr among others, underscores the transformation of the Web to a participatory medium in which users are collaboratively creating, evaluating and distributing information. The innovations introduced by social media has lead to a new paradigm for inte...
[ "cs.CY", "cs.AI", "cs.HC", "cs.MA" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
73555308
math/0703446
2007-03-15
Transverse Knots Distinguished by Knot Floer Homology
We exhibit pairs of transverse knots with the same self-linking number that are not transversely isotopic, using the recently defined knot Floer homology invariant for transverse knots and some algebraic refinements of it.
[ "math.GT", "math.SG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
6419001
math/0703469
2007-03-15
Gluing Constructions Amongst Constant Mean Curvature Hypersurfaces in the (n+1)-Sphere
Four constructions of constant mean curvature (CMC) hypersurfaces in the (n+1)-sphere are given, which should be considered analogues of `classical' constructions that are possible for CMC hypersurfaces in Euclidean space. First, Delaunay-like hypersurfaces, consisting roughly of a chain of hyperspheres winding multipl...
[ "math.DG", "math.AP" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a butscher_1", "name": "Adrian Butscher", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
118981720
astro-ph/0703416
2007-03-15
The Weak Energy Condition and the Expansion History of the Universe
We examine flat models containing a dark matter component and an arbitrary dark energy component, subject only to the constraint that the dark energy satisfies the weak energy condition. We determine the constraints that these conditions place on the evolution of the Hubble parameter with redshift, H(z), and on the sca...
[ "astro-ph", "gr-qc" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a sen_2", "name": "Anjan [\"Ananda\"] Sen", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "r scherrer_1", "name": "Robert [\"J.\"] Scherrer", "publication_history": null, "h_index": null, "num...
null
118914497
astro-ph/0703394
2007-03-15
A complete sample of twelve very X-ray luminous galaxy clusters at z>0.5
We present the statistically complete and cosmologically most relevant subset of the twelve most distant galaxy clusters detected at z>0.5 by the MAssive Cluster Survey (MACS). Ten of these systems are new discoveries; only two (MACSJ0018.5+1626 aka CL0016+1609, and MACSJ0454.1-0300 aka MS0451.6-0305) were previously k...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
15292325
hep-ph/0703164
2007-03-15
The Strongly-Interacting Light Higgs
We develop a simple description of models where electroweak symmetry breaking is triggered by a light composite Higgs, which emerges from a strongly-interacting sector as a pseudo-Goldstone boson. Two parameters broadly characterize these models: m_rho, the mass scale of the new resonances and g_rho, their coupling. An...
[ "hep-ph", "hep-th" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
18775739
astro-ph/0703408
2007-03-15
Patterns of photometric and chromospheric variation among Sun-like stars: A 20-year perspective
We examine patterns of variation of 32 primarily main sequence stars, extending our previous 7-12 year time series to 13-20 years by combining b, y data from Lowell Observatory with similar data from Fairborn Observatory. Parallel chromospheric Ca II H and K emission data from the Mount Wilson Observatory span the enti...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
13895669
cs/0703078
2007-03-15
Broadcast Capacity Region of Two-Phase Bidirectional Relaying
In a three-node network a half-duplex relay node enables bidirectional communication between two nodes with a spectral efficient two phase protocol. In the first phase, two nodes transmit their message to the relay node, which decodes the messages and broadcast a re-encoded composition in the second phase. In this work...
[ "cs.IT", "math.IT" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "t oechtering_1", "name": "Tobias [\"J.\"] Oechtering", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "c schnurr_1", "name": "Clemens Schnurr", "publication_history": null, "h_index": null, "nu...
null
15246183
astro-ph/0703412
2007-03-15
A new list of thorium and argon spectral lines in the visible
Aims. We present a new list of thorium and argon emission lines in the visible obtained by analyzing high-resolution (R=110,000) spectra of a ThAr hollow cathode lamp. The aim of this new line list is to allow significant improvements in the quality of wavelength calibration for medium- to high-resolution astronomical ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16611571
math/0703451
2007-03-15
Trends to Equilibrium in Total Variation Distance
This paper presents different approaches, based on functional inequalities, to study the speed of convergence in total variation distance of ergodic diffusion processes with initial law satisfying a given integrability condition. To this end, we give a general upper bound "\`{a} la Pinsker" enabling us to study our pro...
[ "math.PR" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
15076973
physics/0703160
2007-03-15
SigSpec - I. Frequency- and Phase-Resolved Significance in Fourier Space
Identifying frequencies with low signal-to-noise ratios in time series of stellar photometry and spectroscopy, and measuring their amplitude ratios and peak widths accurately, are critical goals for asteroseismology. These are also challenges for time series with gaps or whose data are not sampled at a constant rate, e...
[ "physics.data-an", "astro-ph.IM", "stat.ME" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16129130
quant-ph/0703138
2007-03-15
Entanglement and its dynamics in open, dissipative systems
Quantum mechanical entanglement can exist in noisy open quantum systems at high temperature. A simple mechanism, where system particles are randomly reset to some standard initial state, can counteract the deteriorating effect of decoherence, resulting in an entangled steady state far from thermodynamical equilibrium. ...
[ "quant-ph" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "l hartmann_1", "name": "Lorenz Hartmann", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "w dür_1", "name": "Wolfgang Dür", "publication_history": null, "h_index": null, "num_papers": null, ...
null
13811487
quant-ph/0703143
2007-03-16
Topological fault-tolerance in cluster state quantum computation
We describe a fault-tolerant version of the one-way quantum computer using a cluster state in three spatial dimensions. Topologically protected quantum gates are realized by choosing appropriate boundary conditions on the cluster. We provide equivalence transformations for these boundary conditions that can be used to ...
[ "quant-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16254511
math/0703503
2007-03-16
The Littlewood-Offord Problem and invertibility of random matrices
We prove two basic conjectures on the distribution of the smallest singular value of random n times n matrices with independent entries. Under minimal moment assumptions, we show that the smallest singular value is of order n^{-1/2}, which is optimal for Gaussian matrices. Moreover, we give a optimal estimate on the ta...
[ "math.PR", "math.FA" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
1381059
quant-ph/0703150
2007-03-16
H-Infinity Control of Linear Quantum Stochastic Systems
The purpose of this paper is to formulate and solve a H-infinity controller synthesis problem for a class of non-commutative linear stochastic systems which includes many examples of interest in quantum technology. The paper includes results on the class of such systems for which the quantum commutation relations are p...
[ "quant-ph" ]
null
[ "target.author.publication_history", "target.author.publication_history.key_reference" ]
[]
[ { "author_id": "m james_1", "name": "Matthew [\"R.\"] James", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "h nurdin_1", "name": "Hendra [\"Ishwara\"] Nurdin", "publication_history": null, "h_index": null, "...
null
119093685
astro-ph/0703445
2007-03-16
{\sc CosmoNet}: fast cosmological parameter estimation in non-flat models using neural networks
We present a further development of a method for accelerating the calculation of CMB power spectra, matter power spectra and likelihood functions for use in cosmological Bayesian inference. The algorithm, called {\sc CosmoNet}, is based on training a multilayer perceptron neural network. We compute CMB power spectra (u...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
54829352
math/0703489
2007-03-16
On Weighted Residual and Past Entropies
We consider a "length-biased" shift-dependent information measure, related to the differential entropy in which higher weight is assigned to large values of observed random variables. This allows us to introduce the notions of "weighted residual entropy" and "weighted past entropy", that are suitable to describe dynami...
[ "math.ST", "stat.TH" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
14761424
q-bio/0703037
2007-03-16
Universal properties of correlation transfer in integrate-and-fire neurons
One of the fundamental characteristics of a nonlinear system is how it transfers correlations in its inputs to correlations in its outputs. This is particularly important in the nervous system, where correlations between spiking neurons are prominent. Using linear response and asymptotic methods for pairs of unconnecte...
[ "q-bio.NC", "cond-mat.dis-nn" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "e shea-brown_1", "name": "Eric Shea-Brown", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "k josic̀_1", "name": "Kresimir Josic̀", "publication_history": null, "h_index": null, "num_papers": n...
null
15307653
math/0703518
2007-03-17
Rigidity of broken geodesic flow and inverse problems
Consider a broken geodesics $\alpha([0,l])$ on a compact Riemannian manifold $(M,g)$ with boundary of dimension $n\geq 3$. The broken geodesics are unions of two geodesics with the property that they have a common end point. Assume that for every broken geodesic $\alpha([0,l])$ starting at and ending to the boundary $\...
[ "math.AP", "math.DG" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
16141659
astro-ph/0703473
2007-03-18
The New Class of Dusty DAZ White Dwarfs
Our mid-infrared survey of 124 white dwarfs with the Spitzer Space Telescope and the IRAC imager has revealed an infrared excess associated with the white dwarf WD 2115-560 naturally explained by circumstellar dust. This object is the fourth white dwarf observed to have circumstellar dust. All four are DAZ white dwarfs...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
11913214
cs/0703092
2007-03-19
Comparing BB84 and Authentication-Aided Kak's Three-Stage Quantum Protocol
This paper compares the popular quantum key distribution (QKD) protocol BB84 with the more recent Kak's three-stage protocol and the latter is shown to be more secure. A theoretical representation of an authentication-aided version of Kak's three-stage protocol is provided that makes it possible to deal with the man-in...
[ "cs.CR" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "p basuchowdhuri_1", "name": "Partha Basuchowdhuri", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
118447822
astro-ph/0703454
2007-03-19
An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data
We present an algorithm to photometrically calibrate wide field optical imaging surveys, that simultaneously solves for the calibration parameters and relative stellar fluxes using overlapping observations. The algorithm decouples the problem of "relative" calibrations, from that of "absolute" calibrations; the absolut...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference", "target.key_reference" ]
null
null
null
14514680
astro-ph/0703475
2007-03-19
Efficient intra- and inter-night linking of asteroid detections using kd-trees
The Panoramic Survey Telescope And Rapid Response System (Pan-STARRS) under development at the University of Hawaii's Institute for Astronomy is creating the first fully automated end-to-end Moving Object Processing System (MOPS) in the world. It will be capable of identifying detections of moving objects in our solar ...
[ "astro-ph" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null
118329765
hep-th/0703170
2007-03-19
Shear Waves, Sound Waves On A Shimmering Horizon
In the context of the so called ``membrane paradigm'' of black holes/branes, it has been known for sometime that the dynamics of small fluctuations on the stretched horizon can be viewed as corresponding to diffusion of a conserved charge in simple fluids. To study shear waves in this context properly, one must define ...
[ "hep-th" ]
null
[ "target.author.publication_history" ]
[ { "corpus_id": "13621758", "num_citations": null }, { "corpus_id": "99966", "num_citations": null } ]
[ { "author_id": "o saremi_1", "name": "Omid Saremi", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null } ]
null
261974948
astro-ph/0703485
2007-03-19
Towards Distributed Petascale Computing
In this chapter we will argue that studying such multi-scale multi-science systems gives rise to inherently hybrid models containing many different algorithms best serviced by different types of computing environments (ranging from massively parallel computers, via large-scale special purpose machines to clusters of PC...
[ "astro-ph", "cs.DC" ]
null
[ "target.author.publication_history" ]
[]
[ { "author_id": "a hoekstra_2", "name": "Alfons [\"G.\"] Hoekstra", "publication_history": null, "h_index": null, "num_papers": null, "num_citations": null }, { "author_id": "s zwart_1", "name": "Simon [\"Portegies\"] Zwart", "publication_history": null, "h_index": null, ...
null
14045061
cond-mat/0703478
2007-03-19
Stochastic Models of Evolution in Genetics, Ecology and Linguistics
We give a overview of stochastic models of evolution that have found applications in genetics, ecology and linguistics for an audience of nonspecialists, especially statistical physicists. In particular, we focus mostly on neutral models in which no intrinsic advantage is ascribed to a particular type of the variable u...
[ "cond-mat.stat-mech", "q-bio.PE" ]
null
[ "target.author.publication_history.key_reference" ]
null
null
null