2014

Satya N. Majumdar 1 Philippe Mounaix 2 Gregory Schehr 1 Journal of Statistical Mechanics, 2014, pp.P09013 In the context of order statistics of discrete time random walks (RW), we investigate the statistics of the gap, $G_n$, and the number of time steps, $L_n$, between the two highest positions of a Markovian one-dimensional random walker, starting […]

Jie Lin 1 Alaa Saade 1 Edan Lerner 1 Alberto Rosso 2 Matthieu Wyart 1 Europhysics Letters, EDP Science, 2014, 105, pp.26003 We study the stability of amorphous solids, focusing on the distribution P(x) of the local stress increase x that would lead to an instability. We argue that this distribution is singular P(x)x^{\theta}, where

Michael Jag 1, 2 Matteo Zaccanti 1, 3 Marko Cetina 1 Rianne S. Lous 1, 4 Florian Schreck 1 Rudolf Grimm 1, 4 Dmitry S. Petrov 5 Jesper Levinsen 6, 7 Physical Review Letters, American Physical Society, 2014, 112, pp.075302 We investigate a mixture of ultracold fermionic $^{40}$K atoms and weakly bound $^{6}$Li$^{40}$K dimers on

Chiara D Errico 1, 2 Eleonora Lucioni 1, 2 Luca Tanzi 1 Lorenzo Gori 1 Guillaume Roux 3 Ian P. McCulloch 4 Thierry Giamarchi 5 Massimo Inguscio 1, 6 Giovanni Modugno 1, 2 Physical Review Letters, American Physical Society, 2014, 113, pp.095301 We employ ultracold atoms with controllable disorder and interaction to study the paradigmatic

A. M. Kamchatnov 1 Y. V. Kartashov 1 P. -É. Larré 2 N. Pavloff 2 Physical Review A, American Physical Society, 2014, 89, pp.033618 Waves with different symmetries exist in two-component Bose-Einstein condensates (BECs) whose dynamics is described by a system of coupled Gross-Pitaevskii (GP) equations. A first type of waves corresponds to excitations for

Shamik Gupta 1 Alessandro Campa 2 Stefano Ruffo 3 Physical Review E, American Physical Society, 2014, 89, pp.022123 We study the dynamics of a system of coupled oscillators of distributed natural frequencies, by including the features of both thermal noise, parametrized by a temperature, and inertial terms, parametrized by a moment of inertia. For a

Tridib Sadhu 1 Satya N. Majumdar 2 David Mukamel 3 Journal of Physics A: Mathematical and Theoretical, Institute of Physics: Hybrid Open Access, 2014, 47, pp.505005 In equilibrium, the effect of a spatially localised perturbation is typically confined around the perturbed region. Quite contrary to this, in a non-equilibrium stationary state often the entire system

Caterina De Bacco 1 Fulvio Baldovin 2 Enzo Orlandini 2 Ken Sekimoto 3, 4 Physical Review Letters, American Physical Society, 2014, 112, pp.180605 We propose a new look at the heat bath for two Brownian particles, in which the heat bath as a ‘system’ is both perturbed and sensed by the Brownian particles. Non-local thermal

Anthony Perret 1 Gregory Schehr 1 Journal of Statistical Physics, Springer Verlag (Germany), 2014, 156, pp.843-876 We study the phenomenon of « crowding » near the largest eigenvalue $\lambda_{\max}$ of random $N \times N$ matrices belonging to the Gaussian Unitary Ensemble (GUE) of random matrix theory. We focus on two distinct quantities: (i) the density of states

Pierre Ronceray 1, 2 Peter Harrowell 3 Physical Review Letters, American Physical Society, 2014, 112, pp.017801 We present here a numerical study of a lattice model of a chiral liquid. The low symmetry of the favoured local structure depresses the freezing point to reveal an exotic liquid-liquid transition characterised by the appearance of an extended