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104 papers · 1 filter

quant-ph2006★ 2 cited

Entanglement may enhance the channel capacity in arbitrary dimensions

E. Karpov, D. Daems, N. J. Cerf

We consider explicitly two examples of d-dimensional quantum channels with correlated noise and show that, in agreement with previous results on Pauli qubit channels, there are sit…

hep-ex2006★ 17 cited

Measurement of the Top Quark Mass in ppbar Collisions at sqrt(s) = 1.96 TeV using the Decay Length Technique

A. Abulencia et al.

We report the first measurement of the top quark mass using the decay length technique in ppbar collisions at a center-of-mass energy of 1.96 TeV. This technique uses the measured…

hep-ex2006★ 10 cited

Cross Section Measurements of High- Dilepton Final-State Processes Using a Global Fitting Method

M. Kruse

We present a new method for studying high- dilepton events (, , ) and simultaneously extracting the production cross sections o…

nucl-th2006★ 13 cited

11Li beta decay into 9Li and deuteron within a three-body model

D. Baye, E. M. Tursunov, P. Descouvemont

The beta decay process of the 11Li halo nucleus into 9Li and d is studied in a three-body model. The 11Li nucleus is described as a 9Li+n+n system in hyperspherical coordinates on…

math.RA2006★ 4 cited

A uniform bound on the nilpotency degree of certain subalgebras of Kac-Moody algebras

Pierre-Emmanuel Caprace

Let be a Kac-Moody algebra and be Borel subalgebras of opposite signs. The intersection $\mathfrak{b} = \mathfrak{b}_1 \cap \mathfra…

astro-ph2006★ 82 cited

Proper-motion binaries in the Hipparcos Catalogue. Comparison with radial velocity data

A. Frankowski, S. Jancart, A. Jorissen

The comparison of the proper motions constructed from positions spanning a short (Hipparcos) or long time (Tycho-2) makes it possible to uncover binaries with periods of the order…

astro-ph2006★ 12 cited

Is astronomy possible with neutral ultra-high energy cosmic ray particles existing in the Standard Model?

P. G. Tinyakov, I. I. Tkachev

The recently observed correlation between HiRes stereo cosmic ray events with energies E ~ 10 EeV and BL Lacs occurs at an angle which strongly suggests that the primary particles…

quant-ph2006★ 70 cited

Lorentz-covariant deformed algebra with minimal length

C. Quesne, V. M. Tkachuk

The -dimensional two-parameter deformed algebra with minimal length introduced by Kempf is generalized to a Lorentz-covariant algebra describing a ()-dimensional quantized…

math-ph2006★ 13 cited

Supersymmetric transformations for coupled channels with threshold differences

Boris F Samsonov, Jean-Marc Sparenberg, Daniel Baye

The asymptotic behaviour of the superpotential of general SUSY transformations for a coupled-channel Hamiltonian with different thresholds is analyzed. It is shown that asymptotica…

hep-ex2006★ 224 cited

Analysis of the Quantum Numbers of the X(3872) Particle

CDF Collaboration

We present an analysis of angular distributions and correlations of the X(3872) particle in the exclusive decay mode X(3872)->J/psi pi+ pi- with J/psi->mu+ mu-. We use 780 pb -1 of…

cond-mat.stat-mech2006★ 28 cited

Quantum master equation for the microcanonical ensemble

Massimiliano Esposito, Pierre Gaspard

By using projection superoperators, we present a new derivation of the quantum master equation first obtained by the Authors in Phys. Rev. E {\bf 68}, 066112 (2003). We show that t…

nucl-th2006★ 50 cited

Global study of the spectroscopic properties of the first 2+ state in even-even nuclei

B. Sabbey, M. Bender, G. F. Bertsch +1

We discuss the systematics of the 2+ excitation energy and the transition probability from this 2+ to the ground state for most of the even-even nuclei, from O16 up to the actinide…

math.DS2006

Symbolic Dynamics Generated by a Combination of Graphs

Vasileios Basios, Gian-Luigi Forti, Gregoire Nicolis

In this paper we investigate the growth rate of the number of all possible paths in graphs with respect to their length in an exact analytical way. Apart from the typical rates of…

hep-th2006★ 15 cited

Twisted Homology

Andres Collinucci, Jarah Evslin

D-branes are classified by twisted K-theory. Yet twisted K-theory is often hard to calculate. We argue that, in the case of a compactification on a simply-connected six manifold, t…

nucl-th2006★ 4 cited

The crust of neutron stars

Nicolas Chamel

The structure of the crust of a neutron star is completely determined by the experimentally measured nuclear masses up to a density of the order of 10^11 g.cm^{-3}. At higher densi…

hep-ex2006★ 106 cited

First events from the CNGS neutrino beam detected in the OPERA experiment

The OPERA Collaboration

The OPERA neutrino detector at the underground Gran Sasso Laboratory (LNGS) was designed to perform the first detection of neutrino oscillations in appearance mode, through the stu…

physics.hist-ph2006★ 28 cited

Early Greek Thought and Perspectives for the Interpretation of Quantum Mechanics: Preliminaries to an Ontological Approach

K. Verelst, B. Coecke

It will be shown in this article that an ontological approach for some problems related to the interpretation of Quantum Mechanics could emerge from a re-evaluation of the main par…

astro-ph2006★ 66 cited

Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope

A. Achterberg

We report the results of a five-year survey of the northern sky to search for point sources of high energy neutrinos. The search was performed on the data collected with the AMANDA…

math.SG2006★ 66 cited

Lagrangian concordance of Legendrian knots

Baptiste Chantraine

In this article we define Lagrangian concordance of Legendrian knots, the analogue of smooth concordance of knots in the Legendrian category. In particular we study the relation of…

hep-th2006★ 49 cited

Meta-Stable Supersymmetry Breaking in a Cooling Universe

Willy Fischler, Vadim Kaplunovsky, Chethan Krishnan +2

We look at the recently proposed idea that susy breaking can be accomplished in a meta-stable vacuum. In the context of one of the simplest models (the Seiberg-dual of super-QCD),…

gr-qc2006★ 26 cited

A note on spin two fields in curved backgrounds

S. Deser, M. Henneaux

We reconsider the consistency constraints on a free massless symmetric, rank 2, tensor field in a background and confirm that they uniquely require it to be the linear deviation ab…

astro-ph2006★ 127 cited

Insight into the baryon-gravity relation in galaxies

Benoit Famaey, Gianfranco Gentile, Jean-Philippe Bruneton +1

Observations of spiral galaxies strongly support a one-to-one analytical relation between the inferred gravity of dark matter at any radius and the enclosed baryonic mass. It is ba…

quant-ph2006★ 14 cited

Optimal multicopy asymmetric Gaussian cloning of coherent states

Jaromir Fiurasek, Nicolas J. Cerf

We investigate the asymmetric Gaussian cloning of coherent states which produces M copies from N input replicas, such that the fidelity of all copies may be different. We show that…

quant-ph2006★ 43 cited

Entanglement-enhanced classical capacity of two-qubit quantum channels with memory: the exact solution

D. Daems

The maximal amount of information which is reliably transmitted over two uses of general Pauli channels with memory is proven to be achieved by maximally entangled states beyond so…