publications

Vicente Garzó 1 Emmanuel Trizac 2 Journal of Statistical Mechanics: Theory and Experiment, IOP Science, 2016, pp.073206 We study the transport properties of an impurity in a sheared granular gas, in the framework of the Boltzmann equation for inelastic Maxwell models. We investigate here the impact of a nonequilibrium phase transition found in such systems, […]

Aur Grabsch 1, 2 Christophe Texier 2 Europhys.Lett., 2016, 〈10.1209/0295-5075/116/17004〉 We establish the connection between a multichannel disordered model —the 1D Dirac equation with $N\times N$ matrix random mass— and a random matrix model corresponding to a deformation of the Laguerre ensemble. This allows us to derive exact determinantal representations for the density of states and identify

O. Gamayun 1 Andrei G. Pronko 2 Mikhail B. Zvonarev 3, 4 New Journal of Physics, Institute of Physics: Open Access Journals, 2016, 18, pp.045005 We investigate a free one-dimensional spinless Fermi gas, and the Tonks-Girardeau gas interacting with a single impurity particle of equal mass. We obtain a Fredholm determinant representation for the time-dependent

Andrea De Luca 1 Inés Rodríguez-Arias 1 Markus Müller 2, 3, 4 Alberto Rosso 1 Physical Review B : Condensed matter and materials physics, American Physical Society, 2016, 94 (1), pp.014203 1. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques 2. Paul Scherrer Institute 3. The Abdus Salam International Centre for Theoretical Physics 4.

Silvio Franz 1 Giorgio Parisi 2 Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2016, 49, pp.145001 We study a well known machine learning model -the perceptron- as a simple model of jamming of hard objects. We exhibit two regimes: 1) a convex optimisation regime where jamming is hypostatic and non-critical. 2) a non

Ada Altieri 1, 2 Silvio Franz 2 Giorgio Parisi 3, 1 Journal of Statistical Mechanics: Theory and Experiment, IOP Science, 2016, 2016 (9), pp.093301 1. SMC/INFM – Department of Physics, Sapienza University of Rome 2. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques 3. INFN – Istituto Nazionale di Fisica Nucleare [Sezione di Roma

Pierre Ronceray 1 Peter Harrowell 2 Molecular Simulation, Taylor & Francis, 2016, 42, pp.1149 The expression of the free energy of a liquid in terms of an explicit decomposition of the particle configurations into local coordination clusters is examined. We argue that the major contribution to the entropy associated with structural fluctuations arises from the

Serguei Brazovskii 1 Natasha Kirova 2 Journal of Experimental and Theoretical Physics (JETP) / Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, MAIK Nauka/Interperiodica, 2016, 149, pp.479 We consider a dynamical phase transition induced by a short optical pulse in a system prone to thermodynamical instability. We address the case of pumping to excitons whose density contributes directly

Giulia Foffano 1 Nicolas Levernier 2 Martin Lenz 1 Nature Communications, Nature Publishing Group, 2016, 7, pp.13827 The actin cytoskeleton is a key component in the machinery of eukaryotic cells, and it selfassembles out of equilibrium into a wide variety of biologically crucial structures. While the molecular mechanisms involved are well characterized, the physical principles

G. Niccoli 1 V. Terras 2 Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2016, 49, pp.044001 We study the inhomogeneous 8-vertex model (or equivalently the XYZ Heisenberg spin-1/2 chain) with all kinds of integrable quasi-periodic boundary conditions: periodic, $\sigma^x$-twisted, $\sigma^y$-twisted or $\sigma^z$-twisted. We show that in all these cases but the periodic one