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Geometry and interactions in self-assembled biological systems

In honour of Françoise Livolant, the LPS (Laboratoire de Physique des Solides) and LPTMS (Laboratoire de Physique Théorique et Modèles Statistiques) are organising an international conference on geometry and interactions in self-assembled biological systems. We will host a two days conference in Orsay, on March 23-24, 2017. Colleagues and friends are welcome. Participants may submit […]

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What drives transient behavior in complex systems?

Jacek Grela 1 Phys.Rev.E, 2017, 96 (2), pp.022316. 〈10.1103/PhysRevE.96.022316〉 We study transient behavior in the dynamics of complex systems described by a set of nonlinear ordinary differential equations. Destabilizing nature of transient trajectories is discussed and its connection with the eigenvalue-based linearization procedure. The complexity is realized as a random matrix drawn from a modified

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Universality of the SAT-UNSAT (jamming) threshold in non-convex continuous constraint satisfaction problems

Pierfrancesco Urbani 1 Francesco Zamponi 2 Silvio Franz 3 Giorgio Parisi 4 Maksim Sevelev 3 SciPost Physics, 2017, 2 (3), pp.019 Random constraint satisfaction problems (CSP) have been studied extensively using statistical physics techniques. They provide a benchmark to study average case scenarios instead of the worst case one. The interplay between statistical physics of

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Two-body relaxation of spin-polarized fermions in reduced dimensionalities near a p-wave Feshbach resonance

D. V. Kurlov 1 G. V. Shlyapnikov 2 Physical Review A, American Physical Society, 2017, 95 (3), pp.032710 We study inelastic two-body relaxation in a spin-polarized ultracold Fermi gas in the presence of a p-wave Feshbach resonance. It is shown that in reduced dimensionalities, especially in the quasi-one-dimensional case, the enhancement of the inelastic rate

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Two- and three-body problem with Floquet-driven zero-range interactions

A. G. Sykes 1 H. Landa 1 D. S. Petrov 1 Physical Review A, American Physical Society, 2017, 95 (6), pp.062705 We study the two-body scattering problem in the zero-range approximation with a sinusoidally driven scattering length and calculate the relation between the mean value and amplitude of the drive for which the effective scattering

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Truncated linear statistics associated with the top eigenvalues of random matrices

Aurélien Grabsch 1 Satya N. Majumdar 1 Christophe Texier 1 Journal of Statistical Physics, Springer Verlag, 2017, 167 (2), pp.234 – 259 Given a certain invariant random matrix ensemble characterised by the joint probability distribution of eigenvalues $P(\lambda_1,\cdots,\lambda_N)$, many important questions have been related to the study of linear statistics of eigenvalues $L=\sum_{i=1}^Nf(\lambda_i)$, where $f(\lambda)$

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Truncated linear statistics associated with the eigenvalues of random matrices II. Partial sums over proper time delays for chaotic quantum dots

Aurélien Grabsch 1 Satya N. Majumdar 1 Christophe Texier 1 Journal of Statistical Physics, Springer Verlag, 2017, 167 (6), pp.1452 – 1488 Invariant ensembles of random matrices are characterized by the distribution of their eigenvalues $\{\lambda_1,\cdots,\lambda_N\}$. We study the distribution of truncated linear statistics of the form $\tilde{L}=\sum_{i=1}^p f(\lambda_i)$ with $p 1. LPTMS – Laboratoire

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Three-dimensional resistivity switching between correlated electronic states in 1T-TaS2

Damjan Svetin 1 Igor Vaskivskyi 2 Serguei Brazovskii 3 Dragan Mihailovic 4, 1, 2 Scientific Reports, Nature Publishing Group, 2017, 7, pp.46048 Recent demonstrations of controlled switching between different ordered macroscopic states by impulsive electromagnetic perturbations in complex materials have opened some fundamental questions on the mechanisms responsible for such remarkable behavior. Here we experimentally

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The open XXX spin chain in the SoV framework: scalar product of separate states

Nikolai Kitanine 1, * Jean-Michel Maillet 2 Giuliano Niccoli 2 Véronique Terras 3 Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2017, 50 (22), pp.224001. 〈10.1088/1751-8121/aa6cc9〉 We consider the XXX open spin-1/2 chain with the most general non-diagonal boundary terms, that we solve by means of the quantum separation of variables (SoV) approach. We

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Temperature Distribution and Heat Radiation of Patterned Surfaces at Short Wave Lengths

Thorsten Emig 1, 2 Physical Review E , American Physical Society (APS), 2017, 95 (5), pp.052104 We analyze the equilibrium spatial distribution of surface temperatures of patterned surfaces. The surface is exposed to a constant external heat flux and has a fixed internal temperature that is coupled to the outside heat fluxes by finite heat

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