2009

Bridge between Abelian and Non-Abelian Fractional Quantum Hall States

N. Regnault 1, M. O. Goerbig 2, Th. Jolicoeur 3 Physical Review Letters 101 (2009) 066803 We propose a scheme to construct the most prominent Abelian and non-Abelian fractional quantum Hall states from K-component Halperin wave functions. In order to account for a one-component quantum Hall system, these SU(K) colors are distributed over all particles by an appropriate symmetrization. Numerical calculations

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Bogoliubov Theory of acoustic Hawking radiation in Bose-Einstein Condensates

A. Recati 1, 2, N. Pavloff 3, I. Carusotto 1 Physical Review A: Atomic, Molecular and Optical Physics 80 (2009) 043603 We apply the microscopic Bogoliubov theory of dilute Bose-Einstein condensates to analyze quantum and thermal fluctuations in a flowing atomic condensate in the presence of a sonic horizon. For the simplest case of a step-like horizon, closed-form analytical expressions are found

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Avalanche-size distribution at the depinning transition: A numerical test of the theory

Alberto Rosso 1, 2, Pierre Le Doussal 1, Kay Joerg Wiese 1 Physical Review B 80 (2009) 144204 We calculate numerically the sizes S of jumps (avalanches) between successively pinned configurations of an elastic line (d=1) or interface (d=2), pulled by a spring of (small) strength m^2 in a random-field landscape. We obtain strong evidence that the size distribution, away from the

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Atom-dimer scattering and long-lived trimers in fermionic mixtures

J. Levinsen 1, T. G. Tiecke 2, J. T. M. Walraven 2, D. S. Petrov 1, 3 Physical Review Letters 103 (2009) 153202 We consider a heteronuclear fermionic mixture on the molecular side of an interspecies Feshbach resonance and discuss atom-dimer scattering properties in uniform space and in the presence of an external confining potential, restricting the system to a quasi-2D geometry. We find

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Asymptotic behavior of self-affine processes in semi-infinite domains

Andrea Zoia 1, Alberto Rosso 2, Satya N. Majumdar 2 Physical Review Letters 102 (2009) 120602 We propose to model the stochastic dynamics of a polymer passing through a pore (translocation) by means of a fractional Brownian motion, and study its behavior in presence of an absorbing boundary. Based on scaling arguments and numerical simulations, we present a conjecture that provides

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Area distribution of two-dimensional random walks on a square lattice

Stefan Mashkevich 1, 2, Stéphane Ouvry 3 Journal of Statistical Physics 137 (2009) 71-78 The algebraic area probability distribution of closed planar random walks of length N on a square lattice is considered. The generating function for the distribution satisfies a recurrence relation in which the combinatorics is encoded. A particular case generalizes the q-binomial theorem to the case of

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Anderson localization of a weakly interacting one dimensional Bose gas

T. Paul 1, 2, M. Albert 1, P. Schlagheck 3, 4, P. Leboeuf 1, N. Pavloff 1 Physical Review A: Atomic, Molecular and Optical Physics 80 (2009) 033615 We consider the phase coherent transport of a quasi one-dimensional beam of Bose-Einstein condensed particles through a disordered potential of length L. Among the possible different types of flow identified in [T. Paul et al., Phys. Rev. Lett. 98,

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A self-consistent renormalized Jellium approach for calculating structural and thermodynamic properties of charge stabilized colloidal suspensions

Thiago E. Colla 1, Yan Levin 2, E. Trizac 3 The Journal of Chemical Physics 131 (2009) 074115 An approach is proposed which allows to self-consistently calculate the structural and thermodynamic properties of highly charged aqueous colloidal suspensions. The method is based on the renormalized Jellium model with the background charge distribution related to the colloid-colloid correlation function. The theory is

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