publications

Archive ouverte HAL – Active Mechanics Reveal Molecular-Scale Force Kinetics in Living Oocytes

Wylie AhmedEtienne Fodor 1 Maria Almonacid 2 Matthias BussonnierMarie-Hélène Verlhac 2 Nir Gov 3 Paolo Visco 4 Frédéric van Wijland 1 Timo Betz 5 Wylie Ahmed, Etienne Fodor, Maria Almonacid, Matthias Bussonnier, Marie-Hélène Verlhac, et al.. Active Mechanics Reveal Molecular-Scale Force Kinetics in Living Oocytes. Biophysical Journal, Biophysical Society, 2018, 114 (7), pp.1667-1679. ⟨10.1016/j.bpj.2018.02.009⟩. ⟨hal-02379042⟩ […]

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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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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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