Nom de l’auteur/autrice :admin

M. A. Baranov 1, 2, 3, C. Lobo 4, G. V. Shlyapnikov 5 Physical Review B 78 (2008) 033620 We consider a superfluid state in a two-component gas of fermionic atoms with equal densities and unequal masses in the BCS limit. We develop a perturbation theory along the lines proposed by Gorkov and Melik-Barkhudarov and find that for a large difference in the […]

Carlos Alvarez 1, 2, Martial Mazars 1, Jean-Jacques Weis 1 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 77 (2008) 051501 We present extensive Monte Carlo simulations for the thermodynamic and structural properties of a planar bilayer of dipolar hard spheres for a wide range of densities, dipole moments and layer separations. Expressions for the stress and pressure tensors of the

Sanjib Sabhapandit 1, Ioana Bena 2, Satya N. Majumdar 1 Journal of statistical mechanics-theory and experiment (2008) P05012 We consider a Jepsen gas of $N$ hard-point particles undergoing free expansion on a line, starting from random initial positions of the particles having random initial velocities. The particles undergo binary elastic collisions upon contact and move freely in-between collisions. After a certain

Satya N. Majumdar 1, Kirone Mallick 2, Sanjib Sabhapandit 3 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 79 (2008) 021109 We investigate the long time behaviour of the one-dimensional ballistic aggregation model that represents a sticky gas of N particles with random initial positions and velocities, moving deterministically, and forming aggregates when they collide. We obtain a closed formula

Mezard, M., Tarzia, M., Toninelli, C. Journal of Statistical Physics131 (2008) 783-801

J. Levinsen 1, N. R. Cooper 2, V. Gurarie 3 Physical Review A: Atomic, Molecular and Optical Physics 78 (2008) 063616 We study the stability of the paired fermionic p-wave superfluid made out of identical atoms all in the same hyperfine state close to a p-wave Feshbach resonance. First we reproduce known results concerning the lifetime of a 3D superfluid, in

R. Nath 1, P. Pedri 2, 3, L. M.N.B.F. Santos 1 Physical Review Letters 101 (2008) 210402 The dynamical stability of dark solitons in dipolar Bose-Einstein condensates is studied. For standard short-range interacting condensates dark solitons are unstable against transverse excitations in two and three dimensions. On the contrary, due to its non local character, the dipolar interaction allows for stable 3D stationary

Silvio Franz 1 European Physical Journal B 64 (2008) 557-561 In this paper I will review my work on disordered systems -spin glass model with two body and $p>2$ body interactions- with long but finite interaction range $R$. I will describe the relation of these model with Mean Field Theory in the Kac limit and some attempts

Thomas Jorg 1, Florent Krzakala 2, Jorge Kurchan 3, A. C. Maggs 2 Physical Review Letters 101 (2008) 147204 We study first order quantum phase transitions in mean-field spin glasses. We solve the quantum Random Energy Model using elementary methods and show that at the transition the eigenstate suddenly projects onto the unperturbed ground state and that the gap between the lowest states

Denis Ullmo 1, Steven Tomsovic 1, 2, 3, Arnd Baecker 4 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 79 (2008) 056217 In a recent letter [Phys. Rev. Lett. {\bf 100}, 164101 (2008)] and within the context of quantized chaotic billiards, random plane wave and semiclassical theoretical approaches were applied to an example of a relatively new class of statistical measures, i.e.