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Dynamics and termination cost of spatially coupled mean-field models

Francesco Caltagirone 1 Silvio Franz 2 Richard Morris 1 Lenka Zdeborová 1 Physical Review E, American Physical Society, 2014, 89, pp.012102 This work is motivated by recent progress in information theory and signal processing where the so-called ‘spatially coupled’ design of systems leads to considerably better performance. We address relevant open questions about spatially coupled […]

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Dynamical patterns of phase transformations from self-trapping of quantum excitons

Tianyou Yi 1 Natasha Kirova 2 Serguei Brazovskii 1 International school-conference on electronic crystals: ECRYS-2014, Aug 2014, Cargèse, France. 460, pp.73, Physica B: Condensed Matter Phase transitions induced by short optical pulses is a new mainstream in studies of cooperative electronic states. Its special realization in systems with neutral-ionic transformations stands out in a way

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Domain-wall melting in ultracold boson systems with holes and spin-flip defects

Jad C. Halimeh 1 Anton Wöllert 1 Ian P. McCulloch 2 Ulrich Schollwöck 1 Thomas Barthel 1, 3 Physical Review A, American Physical Society, 2014, 89, pp.063603 Quantum magnetism is a fundamental phenomenon of nature. As of late, it has garnered a lot of interest because experiments with ultracold atomic gases in optical lattices can

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Diffusion in periodic, correlated random forcing landscapes

David S Dean 1 Shamik Gupta 2, * Gleb Oshanin 3 Alberto Rosso 2 Grégory Schehr 2 Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2014, 47 (37), pp.372001. <10.1088/1751-8113/47/37/372001> We study the dynamics of a Brownian particle in a strongly correlated quenched random potential defined as a periodically-extended (with period $L$) finite trajectory

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Delocalization of weakly interacting bosons in a 1D quasiperiodic potential

V. P. Michal 1 B. L. Altshuler 2 G. V. Shlyapnikov 1, 3, 4 Physical Review Letters, American Physical Society, 2014, 113, pp.045304 We consider weakly interacting bosons in a 1D quasiperiodic potential (Aubry-Azbel-Harper model) in the regime where all single-particle states are localized. We show that the interparticle interaction may lead to the many-body

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Critical dynamics and domain motion from permittivity of the electronic ferroelectric (TMTTF)2AsF6

S. Brazovskii 1, 2 Pierre Monceau 3 F. Ya. Nad 4 International school-conference on electronic crystals: ECRYS-2014, Aug 2014, Cargèse, France. 460, pp.79, Physica B: Condensed Matter The quasi one-dimensional organic conductor (TMTTF)2AsF6 shows the charge ordering transition at Tc101K to a state of the ferroelectric Mott insulator which is still well conducting. We present

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Counter-ions between or at asymmetrically charged walls: 2D free-fermion point

L. Samaj 1, 2 E. Trizac 1 Journal of Statistical Physics, Springer Verlag (Germany), 2014, 156, pp.932 This work contributes to the problem of determining effective interaction between asymmetrically (likely or oppositely) charged objects whose total charge is neutralized by mobile pointlike counter-ions of the same charge, the whole system being in thermal equilibrium. The

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Constraint driven condensation in large fluctuations of linear statistics

Juraj Szavits-Nossan 1 Martin R. Evans 1 Satya N. Majumdar 2 Physical Review Letters, American Physical Society, 2014, 112, pp.020602 Condensation is the phenomenon whereby one of a sum of random variables contributes a finite fraction to the sum. It is manifested as an aggregation phenomenon in diverse physical systems such as coalescence in granular

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