Showing 2009Show all

253 papers · 1 filter

astro-ph.IM2009★ 1 cited

Introduction of Empirical Topology in Construction of Relationship Networks of Informative Objects

Hesam T. Dashti, Mary E. Kloc, Tiago Simas +2

Understanding the structure of relationships between objects in a given database is one of the most important problems in the field of data mining. The structure can be defined for…

cond-mat.mes-hall2009

Fractional Charge Determination via Quantum Shot Noise Measurements

Moty Heiblum

Charge excitations in a two dimensional electron gas, under a quantizing magnetic field and in the fractional quantum Hall effect regime, flow in one dimensional-like strips along…

cond-mat.supr-con2009★ 25 cited

Quantum kinetic approach to the calculation of the Nernst effect

Karen Michaeli, Alexander M. Finkel'stein

We show that the strong Nernst effect observed recently in amorphous superconducting films far above the critical temperature is caused by the fluctuations of the superconducting o…

physics.optics2009★ 37 cited

Phase locking of coupled lasers with many longitudinal modes

Moti Fridman, Micha Nixon, Eitan Ronen +2

Detailed experimental and theoretical investigations on two coupled fiber lasers, each with many longitudinal modes, reveal that the behavior of the longitudinal modes depends on b…

hep-ph2009★ 17 cited

Astrophysical Implications of a Visible Dark Matter Sector from a Custodially Warped-GUT

Kaustubh Agashe, Kfir Blum, Seung J. Lee +1

We explore, within the warped extra dimensional framework, the possibility of finding anti-matter signals in cosmic rays (CRs) from dark matter (DM) annihilation. Exchange of order…

astro-ph.EP2009★ 97 cited

A single sub-km Kuiper Belt object from a stellar Occultation in archival data

H. E. Schlichting, E. O. Ofek, M. Wenz +5

The Kuiper belt is a remnant of the primordial Solar System. Measurements of its size distribution constrain its accretion and collisional history, and the importance of material s…

astro-ph.CO2009★ 89 cited

On the progenitor and early evolution of the type II supernova 2009kr

M. Fraser, K. Takats, A. Pastorello +13

We report the identification of a source coincident with SN 2009kr in HST pre-explosion images. The object appears to be a single point source with an intrinsic colour V-I = 1.1 an…

math.PR2009★ 4 cited

The weak limit of Ising models on locally tree-like graphs

Andrea Montanari, Elchanan Mossel, Allan Sly

We consider the Ising model with inverse temperature beta and without external field on sequences of graphs G_n which converge locally to the k-regular tree. We show that for such…

cs.DS2009

Backyard Cuckoo Hashing: Constant Worst-Case Operations with a Succinct Representation

Yuriy Arbitman, Moni Naor, Gil Segev

The performance of a dynamic dictionary is measured mainly by its update time, lookup time, and space consumption. In terms of update time and lookup time there are known construct…

cond-mat.mes-hall2009★ 42 cited

Interference, Coulomb blockade, and the identification of non-abelian quantum Hall states

Ady Stern, Bernd Rosenow, Roni Ilan +1

We examine the relation between different electronic transport phenomena in a Fabry-Perot interferometer in the fractional quantum Hall regime. In particular, we study the way thes…

cond-mat.str-el2009★ 81 cited

Z_2-slave-spin theory for strongly correlated fermions

A. Rüegg, S. D. Huber, M. Sigrist

We review a representation of Hubbard-like models that is based on auxiliary pseudospin variables. These pseudospins refer to the local charge modulo two in the original model and…

hep-ph2009★ 3 cited

The INTEGRAL/SPI 511 keV Signal from Hidden Valleys in Type Ia and Core Collapse Supernova Explosions

Hooman Davoudiasl, Gilad Perez

We examine under what circumstances the INTEGRAL/SPI 511 keV signal can originate from decays of MeV-scale composite states produced by: (A) thermonuclear (type Ia) or (B) core col…

cs.DS2009

Robust Fault Tolerant uncapacitated facility location

Shiri Chechik, David Peleg

In the uncapacitated facility location problem, given a graph, a set of demands and opening costs, it is required to find a set of facilities R, so as to minimize the sum of the co…

cond-mat.mes-hall2009★ 19 cited

Spin and Charge Correlations in Quantum Dots: An Exact Solution

I. S. Burmistrov, Yuval Gefen, M. N. Kiselev

The inclusion of charging and spin-exchange interactions within the Universal Hamiltonian description of quantum dots is challenging as it leads to a non-Abelian action. Here we pr…

hep-ph2009★ 31 cited

Predictions of hadron abundances in pp collisions at the LHC

F. Becattini, P. Castorina, A. Milov +1

Based on the statistical hadronization model, we obtain quantitative predictions for the relative abundances of hadron species in pp collisions at the LHC. By using the parameters…

cs.DS2009

Relaxed spanners for directed disk graphs

David Peleg, Liam Roditty

Let be a finite metric space, where is a set of points and is a distance function defined for these points. Assume that has a constant doubling dimensio…

astro-ph.CO2009★ 32 cited

New Physics at Low Accelerations (MOND): an Alternative to Dark Matter

Mordehai Milgrom

I describe the MOND paradigm, which posits a departure from standard physics below a certain acceleration scale. This acceleration as deduced from the dynamics in galaxies is found…

physics.ins-det2009★ 95 cited

Readiness of the ATLAS Liquid Argon Calorimeter for LHC Collisions

The ATLAS Collaboration

The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all c…

cond-mat.mes-hall2009★ 8 cited

Clausius-Clapeyron Relations For First Order Phase Transitions In Bilayer Quantum Hall Systems

Yue Zou, Gil Refael, Ady Stern +1

A bilayer system of two-dimensional electron gases in a perpendicular magnetic field exhibits rich phenomena. At total filling factor , as one increases the layer sepa…

astro-ph.SR2009★ 37 cited

Limb-darkening measurements for a cool red giant in microlensing event OGLE 2004-BLG-482

M. Zub, A. Cassan, D. Heyrovsky +47

Aims: We present a detailed analysis of OGLE 2004-BLG-482, a relatively high-magnification single-lens microlensing event which exhibits clear extended-source effects. These events…

hep-ex2009★ 85 cited

Transverse momentum dependence of J/psi polarization at midrapidity in p+p collisions at sqrt(s)=200 GeV

PHENIX Collaboration, A. Adare

We report the measurement of the transverse momentum dependence of inclusive J/psi polarization in p+p collisions at sqrt(s)=200 GeV performed by the PHENIX Experiment at RHIC. The…

hep-th2009★ 214 cited

Integrability and the AdS(3)/CFT(2) correspondence

A. Babichenko, B. Stefanski, K. Zarembo

We investigate the AdS(3)/CFT(2) correspondence for theories with 16 supercharges using the integrability approach. We construct Green-Schwarz actions for Type IIB strings on AdS(3…

cond-mat.mes-hall2009★ 25 cited

Transport through molecular junctions with a nonequilibrium phonon population

O. Entin-Wohlman, Y. Imry, A. Aharony

The calculation of the nonlinear conductance of a single-molecule junction is revisited. The self energy on the junction resulting from the electron-phonon interaction has at low t…

nucl-ex2009★ 316 cited

Detailed measurement of the e+e- pair continuum in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV and implications for direct photon production

PHENIX Collaboration, A. Adare

PHENIX has measured the e^+e^- pair continuum in sqrt(s_NN)=200 GeV Au+Au and p+p collisions over a wide range of mass and transverse momenta. The e^+e^- yield is compared to the e…