Showing 2012Show all

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math.SP2012★ 16 cited

Continuum Schrödinger Operators Associated With Aperiodic Subshifts

David Damanik, Jake Fillman, Anton Gorodetski

We study Schrödinger operators on the real line whose potentials are generated by an underlying ergodic subshift over a finite alphabet and a rule that replaces symbols by compactl…

cs.IT2012★ 72 cited

On the Impact of Phase Noise on Active Cancellation in Wireless Full-Duplex

Achaleshwar Sahai, Gaurav Patel, Chris Dick +1

Recent experimental results have shown that full-duplex communication is possible for short-range communications. However, extending full-duplex to long-range communication remains…

astro-ph.HE2012★ 10 cited

High-Frequency QPOs and Overstable Oscillations of Black-Hole Accretion Disks

Dong Lai, Wen Fu, David Tsang +2

The physical origin of high-frequency QPOs (HFQPOs) in black-hole X-ray binaries remains an enigma despite many years of detailed observational studies. Although there exists a num…

cs.IT2012★ 18 cited

Data Mapping for Unreliable Memories

Christoph Roth, Christian Benkeser, Christoph Studer +2

Future digital signal processing (DSP) systems must provide robustness on algorithm and application level to the presence of reliability issues that come along with corresponding i…

physics.comp-ph2012★ 2 cited

Multicanonical molecular dynamics by variable-temperature thermostats and variable-pressure barostats

Cheng Zhang, Michael W. Deem

Sampling from flat energy or density distributions has proven useful in equilibrating complex systems with large energy barriers. Several thermostats and barostats are presented to…

astro-ph.HE2012★ 55 cited

An Optical-Near-Infrared Outburst with No Accompanying Gamma-Rays in the Blazar PKS 0208-512

Ritaban Chatterjee, G. Fossati, C. M. Urry +6

We report the discovery of an anomalous flare in a bright blazar, namely, PKS 0208-512, one of the targets of the Yale/SMARTS optical-near-infrared (OIR) monitoring program of Ferm…

astro-ph.HE2012★ 8 cited

Simulations of Overstable Inertial-acoustic Modes in Black-Hole Accretion Discs

Wen Fu, Dong Lai

We present two-dimensional inviscid hydrodynamic simulations of overstable inertial-acoustic oscillation modes (p-modes) in black-hole accretion discs. These global spiral waves ar…

q-bio.PE2012★ 3 cited

Fast Algorithms for Reconciliation under Hybridization and Incomplete Lineage Sorting

Yun Yu, Luay Nakhleh

Reconciling a gene tree with a species tree is an important task that reveals much about the evolution of genes, genomes, and species, as well as about the molecular function of ge…

hep-ex2012★ 14 cited

Measurement of the combined rapidity and dependence of dijet azimuthal decorrelations in collisions at TeV

D0 Collaboration

We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, based on the recently proposed quantity . Th…

q-bio.PE2012★ 16 cited

Finite population size effects in quasispecies models with single-peak fitness landscape

David B. Saakian, Michael W. Deem, Chin Kun Hu

We consider finite population size effects for Crow-Kimura and Eigen quasispecies models with single peak fitness landscape. We formulate accurately the iteration procedure for the…

astro-ph.HE2012★ 99 cited

Multiwavelength observations of GRB 110731A: GeV emission from onset to afterglow

LAT Collaboration, GBM Collaboration, Swift Collaboration +2

We report on the multiwavelength observations of the bright, long gamma-ray burst \GRB, by the \Fermi and \Swift observatories, and by the MOA and GROND optical telescopes. The ana…

hep-ex2012★ 74 cited

Measurement of the t t-bar production cross section in pp collisions at sqrt(s) = 7 TeV with lepton + jets final states

CMS Collaboration

A measurement of the t t-bar production cross section in pp collisions at sqrt(s) = 7 TeV is presented. The results are based on data corresponding to an integrated luminosity of 2…

hep-ex2012★ 367 cited

Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs

CMS Collaboration

A study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17.3 inverse femtobarns, collecte…

hep-ex2012★ 54 cited

Search for supersymmetry in pp collisions at sqrt(s) = 7 TeV in events with a single lepton, jets, and missing transverse momentum

The CMS Collaboration

Results are reported from a search for new physics processes in events containing a single isolated high-transverse-momentum lepton (electron or muon), energetic jets, and large mi…

hep-ex2012★ 38 cited

Search for new physics in events with same-sign dileptons and b jets in pp collisions at sqrt(s) = 8 TeV

CMS Collaboration

A search for new physics is performed using events with isolated same-sign leptons and at least two bottom-quark jets in the final state. Results are based on a sample of proton-pr…

cs.IT2012★ 2 cited

Distributed Full-duplex via Wireless Side Channels: Bounds and Protocols

Jingwen Bai, Ashutosh Sabharwal

In this paper, we study a three-node full-duplex network, where a base station is engaged in simultaneous up- and downlink communication in the same frequency band with two half-du…

hep-ex2012★ 11 cited

Search for contact interactions in opposite-sign dimuon events in pp collisions at sqrt(s) = 7 TeV

CMS Collaboration

Results are reported from a search for the effects of contact interactions using events with a high-mass, oppositely charged muon pair. The events are collected in proton-proton co…

nucl-ex2012★ 57 cited

Measurement of J/{psi} Azimuthal Anisotropy in Au+Au Collisions at {sqrt{s_{NN}}} = 200 GeV

STAR Collaboration

The measurement of J/{psi} azimuthal anisotropy is presented as a function of transverse momentum for different centralities in Au+Au collisions at {sqrt{s_{NN}}} = 200 GeV. The me…

cond-mat.str-el2012★ 141 cited

Destruction of Kondo effect in cubic heavy fermion compound Ce3Pd20Si6

J. Custers, K. -A. Lorenzer, M. Müller +9

How ground states of quantum matter transform between one another reveals deep insights into the mechanisms stabilizing them. Correspondingly, quantum phase transitions are explore…

cond-mat.str-el2012★ 70 cited

Structural Phase Transitions of the Metal Oxide Perovskites SrTiO3, LaAlO3 and LaTiO3 Studied with a Screened Hybrid Functional

Fedwa El-Mellouhi, Edward N. Brothers, Melissa J. Lucero +2

We have investigated the structural phase transitions of the transition metal oxide perovskites SrTiO, LaAlO and LaTiO using the screened hybrid density functiona…

math-ph2012★ 35 cited

A mathematical framework for inverse wave problems in heterogeneous media

Kirk D. Blazek, Christiaan C. Stolk, William W. Symes

This paper provides a theoretical foundation for some common formulations of inverse problems in wave propagation, based on hyperbolic systems of linear integro-differential equati…

physics.atom-ph2012★ 80 cited

Imaging the evolution of an ultracold strontium Rydberg gas

P. McQuillen, X. Zhang, T. Strickler +2

Clouds of ultracold strontium 5s48s 1S0 or 5s47d 1D2 Rydberg atoms are created by two photon excitation of laser cooled 5s2 1S0 atoms. The spontaneous evolution of the cloud of low…

hep-ex2012★ 12 cited

Search for charged massive long-lived particles at sqrt(s)= 1.96 TeV

D0 Collaboration

We present a search for charged massive long-lived particles (CMLLPs) that are pair produced in p-pbar collisions at sqrt(s)= 1.96 TeV collected by the D0 experiment at the Fermila…

astro-ph.EP2012★ 77 cited

A Search for Giant Planet Companions to T Tauri Stars

Christopher J. Crockett, Naved I. Mahmud, L. Prato +4

We present results from an ongoing multiwavelength radial velocity (RV) survey of the Taurus-Auriga star forming region as part of our effort to identify pre--main sequence giant p…