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Joel Bun 1, 2, 3 Jean-Philippe Bouchaud 1 Satya N. Majumdar 2 Marc Potters 1 Physical Review Letters, American Physical Society, 2014, 113, pp.070201 We reconsider the large $N$ asymptotics of Harish-Chandra-Itzykson-Zuber integrals. We provide, using Dyson’s Brownian motion and the method of instantons, an alternative, transparent derivation of the Matytsin formalism for the unitary […]

Serguei Brazovskii 1 International school-conference on electronic crystals: ECRYS-2014, Aug 2014, Cargèse, France. 460, pp.236, Physica B: Condensed Matter We suggest a theory for a deformable and sliding charge density wave (CDW) in the Hall bar geometry for the quantum limit when the carriers in remnant small pockets are concentrated at lowest Landau levels (LL)

Andrey Y. Lokhov 1 Marc Mézard 1, 2 Hiroki Ohta 1 Lenka Zdeborová 3 Physical Review E, American Physical Society, 2014, 90, pp.012801 We study the problem of estimating the origin of an epidemic outbreak — given a contact network and a snapshot of epidemic spread at a certain time, determine the infection source. Finding

Ricardo Marino 1 Satya N. Majumdar 1 Grégory Schehr 1 Pierpaolo Vivo 1 Journal of Physics A: Mathematical and Theoretical, Institute of Physics: Hybrid Open Access, 2014, 47, pp.055001 Using a Coulomb gas technique, we compute analytically the probability $\mathcal{P}_\beta^{(C)}(N_+,N)$ that a large $N\times N$ Cauchy random matrix has $N_+$ positive eigenvalues, where $N_+$ is

Roberta Incardone 1, 2 Thorsten Emig 3 Matthias Krüger 1, 2 Europhysics Letters, EDP Science, 2014, 106, pp.41001 We theoretically study heat transfer between two anisotropic nanoparticles in vacuum, and derive closed expressions in terms of the anisotropic dipole polarizabilities. We show that transfer between two small spheroids can be many times as large as

Lenz Martin 1 Physical Review X, 2014, 4, pp.041002 Movement within eukaryotic cells largely originates from localized forces exerted by myosin motors on scaffolds of actin filaments. Although individual motors locally exert both contractile and extensile forces, large actomyosin structures at the cellular scale are overwhelmingly contractile, suggesting that the scaffold serves to favor contraction

H. H. Wensink 1 E. Trizac 2 Journal of Chemical Physics, American Institute of Physics (AIP), 2014, 140, pp.024901 The implications of soft ‘patchy’ interactions on the orientational disorder-order transition of strongly elongated colloidal rods and flat disks is studied within a simple Onsager-van der Waals density functional theory. The theory provides a generic framework

Vincent Démery 1 Laurent Ponson 1 Alberto Rosso 2 Europhysics Letters, EDP Science, 2014, 105, pp.34003 The relevant parameters at the microstructure scale that govern the macroscopic toughness of disordered brittle materials are investigated theoretically. We focus on planar crack propagation and describe the front evolution as the propagation of a long-range elastic line within

Nils Haug 1 Sergei Nechaev 2, 3, 4 Mikhail Tamm 4, 5 Journal of Statistical Mechanics, 2014, pp.P10013 Using the generalized normally ordered form of words in a locally-free group of $n$ generators, we show that in the limit $n\to\infty$, the partition function of weighted directed lattice animals on a semi-infinite strip coincides with the

Patrick Charbonneau 1, 2 Jorge Kurchan 3 Giorgio Parisi 4, 5 Pierfrancesco Urbani 6, 7 Francesco Zamponi 2 Nature Communications, Nature Publishing Group, 2014, 5, pp.3725. 〈10.1038/ncomms4725〉 Glasses are amorphous solids whose constituent particles are caged by their neighbors and thus cannot flow. This sluggishness is often ascribed to the free energy landscape containing multiple