Nom de l’auteur/autrice :admin

G. Bimonte 1, T. Emig 2, M. Kardar 3 Europhysics Letters 104 (2013) 21001 Thermal fluctuations of a critical system induce long-ranged Casimir forces between objects that couple to the underlying field. For two dimensional (2D) conformal field theories (CFT) we derive an exact result for the Casimir interaction between two objects of arbitrary shape, in terms of (1) the free […]

Dragan Mihailovic 1, 2, Tomaz Mertelj 1, Viktor V Kabanov 1, Serguei Brazovskii 3 Journal of Physics: Condensed Matter 25 (2013) 404206 The control of condensed matter systems out of equilibrium by laser pulses allows us to investigate the system trajectories through symmetry-breaking phase transitions. Thus the evolution of both collective modes and single particle excitations can be followed through diverse phase transitions with

E. Bogomolny 1, O. Giraud 1 Physical Review E 88 (2013) 062811 For random matrices with tree-like structure there exists a recursive relation for the local Green functions whose solution permits to find directly many important quantities in the limit of infinite matrix dimensions. The purpose of this note is to investigate and compare expressions for the spectral density

Emmanuelle Gouillart 1, Florent Krzakala 2, Marc Mezard 3, Lenka Zdeborová 4 Inverse Problems 29, 3 (2013) 035003 We consider the reconstruction of a two-dimensional discrete image from a set of tomographic measurements corresponding to the Radon projection. Assuming that the image has a structure where neighbouring pixels have a larger probability to take the same value, we follow a Bayesian approach and

Clélia de Mulatier 1, 2, Alberto Rosso 1, Gregory Schehr 1 Journal of Statistical Mechanics: Theory and Experiment (2013) P10006 We consider a one dimensional asymmetric random walk whose jumps are identical, independent and drawn from a distribution \phi(\eta) displaying asymmetric power law tails (i.e. \phi(\eta) \sim c/\eta^{\alpha +1} for large positive jumps and \phi(\eta) \sim c/(\gamma |\eta|^{\alpha +1}) for large negative

Denis Ullmo 1, * Dong E. Liu 2 Sébastien Burdin 3 Harold U. Baranger 2 European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2013, 86 (8), pp.353. 〈10.1140/epjb/e2013-40418-3〉 We consider the low temperature regime of the mesoscopic Kondo problem, and in particular the relevance of a Fermi-liquid description of this regime. Mesoscopic fluctuations

Gleb Oshanin 1, Alberto Rosso 2, Gregory Schehr 2 Physical Review Letters 110 (2013) 100602 We study properties of a random walk in a generalized Sinai model, in which a quenched random potential is a trajectory of a fractional Brownian motion with arbitrary Hurst parameter H, 0< H

Shamik Gupta 1, Thierry Dauxois 2, Stefano Ruffo 2 Journal of Statistical Mechanics: Theory and Experiment (2013) P11003 We introduce a model of long-range interacting particles evolving under a stochastic Monte Carlo dynamics, in which possible increase or decrease in the values of the dynamical variables is accepted with preassigned probabilities. For symmetric increments, the system at long times settles to

Silvio Franz 1, Giorgio Parisi 2, Federico Ricci-Tersenghi 2, Tommaso Rizzo 2, Pierfrancesco Urbani 1 Journal of Chemical Physics 138 (2013) 064504 We analyze Mode Coupling discontinuous transition in the limit of vanishing discontinuity, approaching the so called « $A_3$ » point. In these conditions structural relaxation and fluctuations appear to have universal form independent from the details of the system. The analysis of this limiting case