publications

Alan J. Bray 1, Satya N. Majumdar 2, G. Schehr 2 Advances in Physics 62, 3 (2013) 225-361 In this review we discuss the persistence and the related first-passage properties in extended many-body nonequilibrium systems. Starting with simple systems with one or few degrees of freedom, such as random walk and random acceleration problems, we progressively discuss the persistence properties in […]

Martin R. Evans 1, Satya N. Majumdar 2, Kirone Mallick 3 Journal of Physics A: Mathematical and Theoretical 46 (2013) 185001 We study first-passage time problems for a diffusive particle with stochastic resetting with a finite rate $r$. The optimal search time is compared quantitatively with that of an effective equilibrium Langevin process with the same stationary distribution. It is shown

Sonia Colombo Serra 1, Alberto Rosso 2, Fabio Tedoldi 1 Physical Chemistry Chemical Physics 15 (2013) 8416-8428 We have explored the manifold physical scenario emerging from a model of Dynamic Nuclear Polarization (DNP) via thermal mixing under the hypothesis of highly effective electron-electron interaction. When the electron and nuclear reservoirs are also assumed to be in strong thermal contact and the

Ezequiel E. Ferrero 1 Sebastian Bustingorry 1 Alejandro B. Kolton 1 Alberto Rosso 2 Comptes Rendus Physique, Elsevier Masson, 2013, 14 (8), pp.641 – 650. <10.1016/j.crhy.2013.08.002> 1. CONICET Centro Atomico Bariloche 2. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques

O. Bohigas 1 and M. P. Pato 2 AIP ADVANCES 3, 032130 (2013) By removing the Hermitian condition of the so-called β-ensemble of tridiagonal matrices, an ensemble of non-Hermitian random matrices is constructed whose eigenvalues are all real. It is shown that they belong to the class of pseudo-Hermitian operators. Its statistical properties are investigated.

Andrey Y. Lokhov 1, Olga V. Valba 1, 2, Mikhail V. Tamm 3, Sergei K. Nechaev 1, 4 Physical Review E 88 (2013) 052117 We study the planar matching problem, defined by a symmetric random matrix with independent identically distributed entries, taking values 0 and 1. We show that the existence of a perfect planar matching structure is possible only above a certain critical density,

Adrien Henry ab , Françoise Monéger c , Areejit Samal* ad and Olivier C. Martin* ab Molecular Biosystems 9 (2013) 1726-1735 The reconstruction of many biological networks has allowed detailed studies of their structural properties. Several features exhibited by these networks have been interpreted to be the result of evolutionary dynamics. For instance the degree

Anthony Perret 1, Alain Comtet 1, 2, Satya N. Majumdar 1, Gregory Schehr 1 Physical Review Letters 111 (2013) 240601 We study the statistics of near-extreme events of Brownian motion (BM) on the time interval [0,t]. We focus on the density of states (DOS) near the maximum \rho(r,t) which is the amount of time spent by the process at a distance r from the

Hiroki Ohta 1 Martin-Luc Rosinberg 2 Gilles Tarjus 2 Europhysics Letters, EDP Science, 2013, 104, pp.16003 We propose a simple, exactly solvable, model of interface growth in a random medium that is a variant of the zero-temperature random-field Ising model on the Cayley tree. This model is shown to have a phase diagram (critical depinning

T. Yi 1,3 , N. Kirova 2,4 , and S. Brazovskii 1,4 Eur. Phys. J. Special Topics 222, 1035–1046 (2013) We present a modeling of stationary states and their transient dynamic for charge density waves in restricted geometries of realistic junctions under the applied voltage or the passing current. The model takes into account multiple