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V. Garzó 1, E. Trizac 2 Granular Matter 14 (2012) 99 The homogeneous Boltzmann equation for inelastic Maxwell mixtures is considered to study the dynamics of tracer particles or impurities (solvent) immersed in a uniform granular gas (solute). The analysis is based on exact results derived for a granular binary mixture in the homogeneous cooling state (HCS) that apply […]

L. Samaj 1, E. Trizac 1 Physical Review B (Condensed Matter) 85 (2012) 205131 We study the ground-state properties of a system of identical classical Coulombic point particles, evenly distributed between two equivalently charged parallel plates at distance $d$; the system as a whole is electroneutral. It was previously shown that upon increasing d from 0 to infinity, five

Yan V. Fyodorov, Pierre Le Doussal, Alberto Rosso Journal of Statistical Physics 149 (2012) 898-920 To understand the sample-to-sample fluctuations in disorder-generated multifractal patterns we investigate analytically as well as numerically the statistics of high values of the simplest model – the ideal periodic $1/f$ Gaussian noise. By employing the thermodynamic formalism we predict the

Petrov, D.S., Lebedev, V., Walraven, J.T.M. Physical Review A85 (2012) 062711

D. S. Petrov 1, 2, V. Lebedev 3, J. T. M. Walraven 3 Physical Review A 85 (2012) 062711 We analytically study the atom-dimer scattering problem in the near-integrable limit when the oscillator length l_0 of the transverse confinement is smaller than the dimer size, ~l_0^2/|a|, where a

Jean Barbier 1, Florent Krzakala 1, Marc Mézard 2, Lenka Zdeborová 3 50th annual Allerton conference on communication, control, and computing, États-Unis (2012) Compressed sensing is designed to measure sparse signals directly in a compressed form. However, most signals of interest are only « approximately sparse », i.e. even though the signal contains only a small fraction of relevant (large) components the other components are

Ehsan Noruzifar 1, Thorsten Emig 2, Umar Mohideen 1, Roya Zandi 1 Physical Review B 86 (2012) 115449 We investigate the Casimir interaction between two parallel metallic cylinders and between a metallic cylinder and plate. The material properties of the metallic objects are implemented by the plasma, Drude and perfect metal model dielectric functions. We calculate the Casimir interaction numerically at all separation

P. Rodriguez-Lopez 1, T. Emig 2 Physical Review A 85 (2012) 032510 The Casimir interaction between one-dimensional metallic objects (cylinders, wires) displays unconventional features. Here we study the orientation dependence of this interaction by computing the Casimir energy between two inclined cylinders over a wide range of separations. We consider Dirichlet, Neumann and perfect metal boundary conditions, both at

G. Bimonte 1, T. Emig 2, R. L. Jaffe 3, M. Kardar 4 Europhycs Letters 97 (2012) 50001 The proximity force approximation (PFA) relates the interaction between closely spaced, smoothly curved objects to the force between parallel plates. Precision experiments on Casimir forces necessitate, and spur research on, corrections to the PFA. We use a derivative expansion for gently curved surfaces to derive

Alan Gabel 1, Satya N. Majumdar 2, Nagendra K. Panduranga 1, S. Redner 1 Journal of Statistical Mechanics: Theory and Experiment (2012) P05011 We study the survival of a single diffusing lamb on the positive half line in the presence of N diffusing lions that all start at the same position L to the right of the lamb and a haven at x=0.