2014

V. Démery 1 V. Lecomte 2 A. Rosso 3 Journal of Statistical Mechanics : Theory and Experiment, 2014, P03009, 20 p. <10.1088/1742-5468/2014/03/P03009> 1. IJLRA – Institut Jean Le Rond d’Alembert 2. LPMA – Laboratoire de Probabilités et Modèles Aléatoires 3. Laboratoire Physique Théorique et Modèles Statistiques (UMR CNRS 8626), Université de Paris-Sud, Orsay Cedex,

Moritz Antlanger 1, 2 Martial Mazars 1 Ladislav Šamaj 3, 4 Gerhard Kahl 2 Emmanuel Trizac 4 LPT-ORSAY 14-10. 17 pages, 11 figures. 2014 A planar array of identical charges at vanishing temperature forms a Wigner crystal with hexagonal symmetry. We take off one (reference) charge in a perpendicular direction, hold it fixed, and search

Maxim Komarov 1, 2 Shamik Gupta 3 Arkady Pikovsky 1, 2 Europhysics Letters, EDP Science, 2014, 106, pp.40003 We study a generic model of globally coupled rotors that includes the effects of noise, phase shift in the coupling, and distributions of moments of inertia and natural frequencies of oscillation. As particular cases, the setup includes

Thomas Gueudré 1 Awadhesh Kumar Dubey 2 Laurent Talon 2 Alberto Rosso 3 Physical Review E, American Physical Society, 2014, 89, pp.041004 Reaction fronts evolving in a porous medium exhibit a rich dynamical behaviour. In presence of an adverse flow, experiments show that the front slows down and eventually gets pinned, displaying a particular sawtooth

Michael J. Kearney 1 Satya N. Majumdar 2 Journal of Physics A: Mathematical and Theoretical, Institute of Physics: Hybrid Open Access, 2014, 47, pp.465001 We derive the moments of the first passage time for Brownian motion conditioned by either the maximum value or the area swept out by the motion. These quantities are the natural

Lavarélo Arthur 1 Roux Guillaume 1 The European Physical Journal B, Springer, 2014, 87, pp.229 The excitation spectrum of the frustrated spin-$1/2$ Heisenberg chain is reexamined using variational and exact diagonalization calculations. We show that the overlap matrix of the short-range resonating valence bond states basis can be inverted which yields tractable equations for single

Y. Y. Atas 1 E. Bogomolny 1 Journal of Physics A: Mathematical and Theoretical, Institute of Physics: Hybrid Open Access, 2014, 47, pp.335201 Spectral density of quantum Ising model in two fields for large but finite number of spins $N$, is discussed in detail. When all coupling constants are of the same order, spectral densities

Fengcheng Wu 1 Inti Sodemann 1 Yasufumi Araki 1 Allan H. MacDonald 1 Thierry Jolicoeur 2 Physical Review B (Condensed Matter), American Physical Society, 2014, pp.235432 Electrons in graphene have four flavors associated with low-energy spin and valley degrees of freedom. The fractional quantum Hall effect in graphene is dominated by long-range Coulomb interactions which

Caterina De Bacco 1 Silvio Franz 1 David Saad 2 Chi Ho Yeung 2, 3, 4 Journal of Statistical Mechanics, 2014, pp.P07009 A localized method to distribute paths on random graphs is devised, aimed at finding the shortest paths between given source/destination pairs while avoiding path overlaps at nodes. We propose a method based on

R. Burioni 1, 2 G. Gradenigo 3, 4 A. Sarracino 3 A. Vezzani 5, 6 A. Vulpiani 7 Small system nonequilibrium fluctuations, dynamics and stochastics, and anomalous behavior, China. 62, pp.514, 2014, Communications in Theoretical Physics We consider a broad class of Continuous Time Random Walks with large fluctuations effects in space and time distributions: