Showing 2004Show all

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nlin.CD2004★ 6 cited

Large-scale energy spectra in surface quasi-geostrophic turbulence

Chuong V. Tran, John C. Bowman

The large-scale energy spectrum in two-dimensional turbulence governed by the surface quasi-geostrophic (SQG) equation is studied.…

hep-ex2004★ 24 cited

CKM Results From CLEO

Karl M. Ecklund

I present recent CLEO measurements of inclusive semileptonic B decay spectra and the branching fraction. I also report preliminary results from a combined fit to spectral moments,…

gr-qc2004★ 8 cited

Observable form of pulses emitted from relativistic collapsing objects

V. P. Frolov, H. K. Lee

In this work, we discuss observable characteristics of the radiation emitted from a surface of a collapsing object. We study a simplified model in which a radiation of massless par…

cond-mat.stat-mech2004★ 82 cited

Path Integral Ground State with a Fourth-Order Propagator: Application to Condensed Helium

Javier E. Cuervo, Pierre-Nicholas Roy, Massimo Boninsegni

Ground state properties of condensed Helium are calculated using the Path Integral Ground State (PIGS) method. A fourth-order approximation is used as short (imaginary) time propag…

cond-mat.stat-mech2004★ 21 cited

Adsorption of para-Hydrogen on Fullerenes

Joseph D. Turnbull, Massimo Boninsegni

Adsorption of para-Hydrogen on the outer surface of a single fullerene is studied theoretically, by means of ground state Quantum Monte Carlo simulations. We compute energetics and…

hep-th2004★ 32 cited

Thermofield Dynamics and Casimir Effect for Fermions

H. Queiroz, J. C. da Silva, F. C. Khanna +3

A generalization of the Bogoliubov transformation is developed to describe a space compactified fermionic field. The method is the fermionic counterpart of the formalism introduced…

quant-ph2004★ 62 cited

Remote Preparation and Distribution of Bipartite Entangled States

Gilad Gour, Barry C. Sanders

We prove a powerful theorem for tripartite remote entanglement distribution protocols that establishes an upper bound on the amount of entanglement of formation that can be created…

cond-mat.mes-hall2004★ 13 cited

How many electrons are needed to flip a local spin?

Wonkee Kim, R. K. Teshima, F. Marsiglio

Considering the spin of a local magnetic atom as a quantum mechanical operator, we illustrate the dynamics of a local spin interacting with a ballistic electron represented by a wa…

hep-ex2004★ 24 cited

A Measurement of the Ratio of Inclusive Cross Sections pp->Z+b-jet/pp->Z+jet at sqrt(s) = 1.96-TeV

D0 Collaboration, V. M. Abazov

Using the data collected with the DZero detector at sqrt(s)=1.96-TeV, for integrated luminosities of about 180 pb^{-1}, we have measured the ratio of inclusive cross sections for p…

hep-ex2004★ 32 cited

Measurement of the WW production cross section in p anti-p collisions at s**(1/2) = 1.96 TeV

D0 Collaboration, V. M. Abazov

We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO…

hep-ex2004★ 26 cited

A search for W bb and W Higgs production in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We present a search for W b \bar{b} production in p \bar{p} collisions at sqrt{s}=1.96 TeV in events containing one electron, an imbalance in transverse momentum, and two b-tagged…

hep-ex2004★ 21 cited

Measurement of the Lambda^0_b lifetime in the decay Lambda^0_b -> J/psi Lambda^0 with the D0 Detector

D0 Collaboration, V. M. Abazov

We present measurements of the Lambda^0_b lifetime in the exclusive decay channel Lambda^0_{b}->J/psi Lambda^0, with J/psi to mu+ mu- and Lambda^0 to p pi-, the B^0 lifetime in the…

hep-ex2004★ 4 cited

Search for Radions at LEP2

The OPAL collaboration, G. Abbiendi

A new scalar resonance, called the radion, with couplings to fermions and bosons similar to those of the Higgs boson, is predicted in the framework of Randall-Sundrum models, propo…

hep-ex2004★ 4 cited

Measurement of Rb in e+e- Collisions at 182 - 209 GeV

The OPAL Collaboration, G. Abbiendi

Measurements of Rb, the ratio of the bbbar cross-section to the qqbar cross- section in e+e- collisions, are presented. The data were collected by the OPAL experiment at LEP at cen…

quant-ph2004★ 138 cited

Family of Concurrence Monotones and its Applications

Gilad Gour

We extend the definition of concurrence into a family of entanglement monotones, which we call concurrence monotones. We discuss their properties and advantages as computational ma…

hep-th2004★ 30 cited

Irreversibility of World-sheet Renormalization Group Flow

T Oliynyk, V Suneeta, E Woolgar

We demonstrate the irreversibility of a wide class of world-sheet renormalization group (RG) flows to first order in in string theory. Our techniques draw on the mathematics o…

hep-ex2004★ 41 cited

Measurement of the Muon Decay Parameter delta

TWIST Collaboration, A. Gaponenko, R. Bayes +45

The muon decay parameter delta has been measured by the TWIST collaboration. We find delta = 0.74964 +- 0.00066(stat.) +- 0.00112(syst.), consistent with the Standard Model value o…

hep-ex2004★ 20 cited

Precision planar drift chambers and cradle for the TWIST muon decay spectrometer

R. S. Henderson, Yu. I. Davydov, W. Faszer +9

To measure the muon decay parameters with high accuracy, we require an array of precision drift detector layers whose relative position is known with very high accuracy. This artic…

hep-th2004★ 341 cited

Rotating Black Holes in Higher Dimensions with a Cosmological Constant

G. W. Gibbons, H. Lu, D. N. Page +1

We present the metric for a rotating black hole with a cosmological constant and with arbitrary angular momenta in all higher dimensions. The metric is given in both Kerr-Schild an…

hep-ex2004★ 94 cited

Measurement of Dijet Azimuthal Decorrelations at Central Rapidities in pp-bar Collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

Correlations in the azimuthal angle between the two largest transverse momentum jets have been measured using the D0 detector in pp-bar collisions at a center-of-mass energy sqrt(s…

astro-ph2004★ 40 cited

Pulse Shapes From Rapidly-Rotating Neutron Stars: Equatorial Photon Orbits

Coire Cadeau, Denis A. Leahy, Sharon M. Morsink

We demonstrate that fitted values of stellar radius obtained by fitting theoretical light curves to observations of millisecond period X-ray pulsars can significantly depend on the…

math.FA2004

The amenability constant of the Fourier algebra

Volker Runde

For a locally compact group , let denote its Fourier algebra and its dual object, i.e. the collection of equivalence classes of unitary represenations of . W…

hep-th2004★ 459 cited

Hawking Radiation and Black Hole Thermodynamics

Don N. Page

An inexhaustive review of Hawking radiation and black hole thermodynamics is given, focusing especially upon some of the historical aspects as seen from the biased viewpoint of a m…

hep-ex2004★ 18 cited

Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi

D0 Collaboration, V. M. Abazov

Using the exclusive decay B^0_s -> J/psi (mu+mu-) phi(K+K-), we report the most precise single measurement of the B^0_s lifetime. The data sample corresponds to an integrated lumin…