2006

J. Dobnikar 1, 2, R. Castañeda-Priego 3, H. H. von Grünberg 2, E. Trizac 4, 5 New Journal of Physics 8 (2006) 277 Combining cell and Jellium model mean-field approaches, Monte Carlo together with integral equation techniques, and finally more demanding many-colloid mean-field computations, we investigate the thermodynamic behavior, pressure and compressibility of highly charged colloidal dispersions, and at a more microscopic level, the force […]

Jovanka Lukic 1, Enzo Marinari 2, Olivier C. Martin 3, Silvia Sabatini 4 Journal of Statistical Mechanics (2006) L10001 We study temperature chaos in a two-dimensional Ising spin glass with random quenched bimodal couplings, by an exact computation of the partition functions on large systems. We study two temperature correlators from the total free energy and from the domain wall free energy: in

Di Francesco, P., Zinn-Justin, P., Zuber, J.-B. Journal of Statistical Mechanics (2006) P08011

Latyshev, Yu.I., Monceau, P., Brazovskii, S., Orlov, A.P., Fournier, T. Physical Review Letters 96 (2006) 116402

T. Joerg 1, J. Lukic 1, E. Marinari 2, O. C. Martin 3 Physical Review Letters 96 (2006) 237205 At zero temperature, two-dimensional Ising spin glasses are known to fall into several universality classes. Here we consider the scaling at low but non-zero temperature and provide numerical evidence that $\eta \approx 0$ and $\nu \approx 3.5$ in all cases, suggesting a unique universality

Apoorva Nagar 1, Satya N. Majumdar 2, Mustansir Barma 1 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 74 (2006) 021124 We study the clustering of passive, non-interacting particles moving under the influence of a fluctuating field and random noise, in one dimension. The fluctuating field in our case is provided by a surface governed by the Kardar-Parisi-Zhang (KPZ) equation

Sanjib Sabhapandit 1, 2, Satya N. Majumdar 1, Alain Comtet 1, 2 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 73 (2006) 051102 We present a formalism for obtaining the statistical properties of functionals and inverse functionals of the paths of a particle diffusing in a one-dimensional quenched random potential. We demonstrate the implementation of the formalism in two specific examples: (1)

Thierry Mora 1, Olivier Rivoire 2 Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 74 (2006) 056110 Error exponents characterize the exponential decay, when increasing message length, of the probability of error of many error-correcting codes. To tackle the long standing problem of computing them exactly, we introduce a general, thermodynamic, formalism that we illustrate with maximum-likelihood decoding

Ioana Bena 1, Francois Coppex 1, Michel Droz 1, Paolo Visco 2, 3, Emmanuel Trizac 2, Frederic van Wijland 4 Physica A 370 (2006) 179-189 We consider the characterization of the nonequilibrium stationary state of a randomly-driven granular gas in terms of an entropy-production based variational formulation. Enforcing spatial homogeneity, we first consider the temporal stability of the stationary state reached after a transient. In connection, two heuristic

Ribhu K. Kaul 1, 2, Gergely Zaránd 3, 4, Shailesh Chandrasekharan 1, Denis Ullmo 1, 5, Harold U. Baranger 1 Physical Review Letters 96 (2006) 176802 Motivated by experiments on double quantum dots, we study the problem of a single magnetic impurity confined in a finite metallic host. We prove an exact theorem for the ground state spin, and use analytic and numerical arguments to map out the