Nom de l’auteur/autrice :admin

Saad Zaheer 1, Sahand Jamal Rahi 1, Thorsten Emig 2, 3, Robert L. Jaffe 1, 4 Physical Review A: Atomic, Molecular and Optical Physics 81 (2009) 030502 We investigate the electromagnetic Casimir interactions of an object contained within an otherwise empty, perfectly conducting spherical shell. For a small object we present analytical calculations of the force, which is directed away from the center of the […]

Robert M. Ziff 1, Satya N. Majumdar 2, Alain Comtet 2, 3 Journal of Chemical Physics 130, 20 (2009) 204104 It is shown that particles undergoing discrete-time jumps in 3D, starting at a distance r0 from the center of an adsorbing sphere of radius R, are captured with probability (R – c sigma)/r0 for r0 much greater than R, where c is

N. Regnault 1, M. O. Goerbig 2, Th. Jolicoeur 3 Physical Review Letters 101 (2009) 066803 We propose a scheme to construct the most prominent Abelian and non-Abelian fractional quantum Hall states from K-component Halperin wave functions. In order to account for a one-component quantum Hall system, these SU(K) colors are distributed over all particles by an appropriate symmetrization. Numerical calculations

A. Recati 1, 2, N. Pavloff 3, I. Carusotto 1 Physical Review A: Atomic, Molecular and Optical Physics 80 (2009) 043603 We apply the microscopic Bogoliubov theory of dilute Bose-Einstein condensates to analyze quantum and thermal fluctuations in a flowing atomic condensate in the presence of a sonic horizon. For the simplest case of a step-like horizon, closed-form analytical expressions are found

Alberto Rosso 1, 2, Pierre Le Doussal 1, Kay Joerg Wiese 1 Physical Review B 80 (2009) 144204 We calculate numerically the sizes S of jumps (avalanches) between successively pinned configurations of an elastic line (d=1) or interface (d=2), pulled by a spring of (small) strength m^2 in a random-field landscape. We obtain strong evidence that the size distribution, away from the

J. Levinsen 1, T. G. Tiecke 2, J. T. M. Walraven 2, D. S. Petrov 1, 3 Physical Review Letters 103 (2009) 153202 We consider a heteronuclear fermionic mixture on the molecular side of an interspecies Feshbach resonance and discuss atom-dimer scattering properties in uniform space and in the presence of an external confining potential, restricting the system to a quasi-2D geometry. We find

Andrea Zoia 1, Alberto Rosso 2, Satya N. Majumdar 2 Physical Review Letters 102 (2009) 120602 We propose to model the stochastic dynamics of a polymer passing through a pore (translocation) by means of a fractional Brownian motion, and study its behavior in presence of an absorbing boundary. Based on scaling arguments and numerical simulations, we present a conjecture that provides

Stefan Mashkevich 1, 2, Stéphane Ouvry 3 Journal of Statistical Physics 137 (2009) 71-78 The algebraic area probability distribution of closed planar random walks of length N on a square lattice is considered. The generating function for the distribution satisfies a recurrence relation in which the combinatorics is encoded. A particular case generalizes the q-binomial theorem to the case of

Kirova, N., Rojo-Bravo, A., Brazovskii, S. Physica B404 (2009) 565-569

T. Paul 1, 2, M. Albert 1, P. Schlagheck 3, 4, P. Leboeuf 1, N. Pavloff 1 Physical Review A: Atomic, Molecular and Optical Physics 80 (2009) 033615 We consider the phase coherent transport of a quasi one-dimensional beam of Bose-Einstein condensed particles through a disordered potential of length L. Among the possible different types of flow identified in [T. Paul et al., Phys. Rev. Lett. 98,