2020

Freezing transition in the barrier crossing rate of a diffusing particle – Archive ouverte HAL

Sanjib Sabhapandit 1 Satya N. Majumdar 2 Sanjib Sabhapandit, Satya N. Majumdar. Freezing transition in the barrier crossing rate of a diffusing particle. Physical Review Letters, American Physical Society, 2020. ⟨hal-03010264⟩ We study the decay rate $\theta(a)$ that chracterizes the late time exponential decay of the first-passage probability density, $F_a(t|0) \sim e^{-\theta(a)\, t}$, of a

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Formation of dispersive shock waves in a saturable nonlinear medium – Archive ouverte HAL

Sergey K. IvanovJules-Elémir SuchorskiAnatoly M. KamchatnovMathieu Isoard 1 Nicolas Pavloff 1 Sergey K. Ivanov, Jules-Elémir Suchorski, Anatoly M. Kamchatnov, Mathieu Isoard, Nicolas Pavloff. Formation of dispersive shock waves in a saturable nonlinear medium. Physical Review E , American Physical Society (APS), 2020, 102 (3), ⟨10.1103/PhysRevE.102.032215⟩. ⟨hal-03017066⟩ We use the Gurevich-Pitaevskii approach based on the Whitham

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Fluctuations of the Product of Random Matrices and Generalized Lyapunov Exponent – Archive ouverte HAL

Christophe Texier 1 Christophe Texier. Fluctuations of the Product of Random Matrices and Generalized Lyapunov Exponent. Journal of Statistical Physics, Springer Verlag, 2020, 181 (3), pp.990-1051. ⟨10.1007/s10955-020-02617-w⟩. ⟨hal-03017028⟩ I present a general framework allowing to carry out explicit calculation of the moment generating function of random matrix products $\Pi_n=M_nM_{n-1}\cdots M_1$, where $M_i$’s are i.i.d.. Following

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Finite-time adiabatic processes: Derivation and speed limit – Archive ouverte HAL

Carlos Plata 1 David Guéry-Odelin 2 Emmanuel Trizac 3 Antonio Prados 4 Carlos Plata, David Guéry-Odelin, Emmanuel Trizac, Antonio Prados. Finite-time adiabatic processes: Derivation and speed limit. Physical Review E , American Physical Society (APS), 2020, 101 (3), ⟨10.1103/PhysRevE.101.032129⟩. ⟨hal-02535447⟩ Obtaining adiabatic processes that connect equilibrium states in a given time represents a challenge for

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Finite temperature and quench dynamics in the Transverse Field Ising Model from form factor expansions – Archive ouverte HAL

Etienne GranetMaurizio Fagotti 1 Fabian H.L. Essler Etienne Granet, Maurizio Fagotti, Fabian H.L. Essler. Finite temperature and quench dynamics in the Transverse Field Ising Model from form factor expansions. SciPost Phys., 2020, 9 (3), pp.033. ⟨10.21468/SciPostPhys.9.3.033⟩. ⟨hal-02542815⟩ We consider the problems of calculating the dynamical order parameter two-point function at finite temperatures and the one-point

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Few-body bound states of two-dimensional bosons – Archive ouverte HAL

G. Guijarro 1 G. E. Astrakharchik 1 J. Boronat 1 B. BazakD. S. Petrov 2 G. Guijarro, G. E. Astrakharchik, J. Boronat, B. Bazak, D. S. Petrov. Few-body bound states of two-dimensional bosons. Physical Review A, American Physical Society 2020, ⟨10.1103/PhysRevA.101.041602⟩. ⟨hal-02537195⟩ We study clusters of the type A$_N$B$_M$ with $N\leq M\leq 3$ in a

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Fwd: [CNRS Presse] CNRS : Synthèse de presse – 16 janvier 2020

  ACTUALITE DES LABORATOIRES ET AUSSI…     Les couleurs de la statue de Pachacamac enfin révélées Une équipe de chercheurs a retracé l’origine des mystérieuses colorations rouges qui ornent la statue de Pachacamac, dieu qui fut vénéré par les Incas. Pour la première fois, une datation au carbone 14 a été réalisée sur l’objet

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Extreme value statistics of correlated random variables: a pedagogical review – Archive ouverte HAL

Satya N. Majumdar 1 Arnab PalGregory Schehr 1 Satya N. Majumdar, Arnab Pal, Gregory Schehr. Extreme value statistics of correlated random variables: a pedagogical review. Physics Reports, Elsevier, 2020, ⟨10.10667⟩. ⟨hal-02512248⟩ Extreme value statistics (EVS) concerns the study of the statistics of the maximum or the minimum of a set of random variables. This is

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Experimental Study of Collective Pedestrian Dynamics – Archive ouverte HAL

Cécile Appert-RollandJulien PettréAnne-Hélène OlivierWilliam WarrenAymeric Duigou-MajumdarEtienne PinsardAlexandre Nicolas 1 Cécile Appert-Rolland, Julien Pettré, Anne-Hélène Olivier, William Warren, Aymeric Duigou-Majumdar, et al.. Experimental Study of Collective Pedestrian Dynamics. Collective Dynamics, 2020, 5, pp.A109. ⟨10.17815/CD.2020.109⟩. ⟨hal-02992406⟩ We report on two series of experiments, conducted in the frame of two different collaborations designed to study how pedestrians adapt

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