2018

Archive ouverte HAL – Active Brownian motion in two dimensions

Urna Basu 1 Satya N. Majumdar 2 Alberto Rosso 2 Satya Majumdar 2 Gregory Schehr 2 Physical Review E , American Physical Society (APS), 2018, 98 (6), 〈10.1103/PhysRevE.98.062121〉 We study the dynamics of a single active Brownian particle (ABP) in a two-dimensional harmonic trap. The active particle has an intrinsic time scale $D_R^{-1}$ set by […]

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Archive ouverte HAL – A Trap Model for Clogging and Unclogging in Granular Hopper Flows

Alexandre Nicolas 1 Angel Garcimartín 2 Iker Zuriguel 2 Physical Review Letters, American Physical Society, 2018, 120 (19), pp.198002. 〈https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.198002〉 1. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques 2. UNAV – Universidad de Navarra [Pamplona]

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Archive ouverte HAL – A nonequilibrium force can stabilize 2D active nematics

Ananyo Maitra 1, * Pragya Srivastava 2 M. Cristina Marchetti 3 Juho Lintuvuori 4 Sriram Ramaswamy 5, 6 Martin Lenz 1, 7, * Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2018, 115 (27), pp.6934-6939 Suspensions of actively driven anisotropic objects exhibit distinctively nonequilibrium behaviors,

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Archive ouverte HAL – A Minimal Power Model for Human Running Performance

Matthew Mulligan 1 Guillaume Adam 2 Thorsten Emig 3, 4 PLoS ONE, Public Library of Science, 2018 Models for human running performances of various complexities and underlying principles have been proposed, often combining data from world record performances and bio-energetic facts of human physiology. Here we present a novel, minimal and universal model for human

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Archive ouverte HAL – A counterintuitive way to speed up pedestrian and granular bottleneck flows prone to clogging: Can ‘more’ escape faster?

Alexandre Nicolas 1 Santiago Ibáñez 2 Marcelo Kuperman 2 Sebastián Bouzat 2 Journal of Statistical Mechanics: Theory and Experiment, IOP Science, 2018, 2018 (8), pp.083403. 〈http://iopscience.iop.org/article/10.1088/1742-5468/aad6c0〉 Dense granular flows through constrictions, as well as competitive pedestrian evacuations, are hindered by a propensity to form clogs. We use simulations of model pedestrians and experiments with granular

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Archive ouverte HAL – A correlation-hole approach to the electric double layer with counter-ions only

Ivan Palaia 1 Martin Trulsson 2 L. Samaj 3 Emmanuel Trizac 1 Ladislav Šamaj 3 Molecular Physics, Taylor & Francis, 2018, 116 (21-22), pp.3134 – 3146. 〈10.1080/00268976.2018.1471234〉 We study a classical system of identically charged counter-ions near a planar wall carrying a uniform surface charge density. The equilibrium statistical mechanics of the system depends on

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