Zobrazeno 1 - 10
of 312
pro vyhledávání: '"Bertin, Éric"'
A cascade model for the discontinuous absorbing phase transition between turbulent and laminar flows
We introduce a minimal model of energy transfer through scales to describe, at a qualitative level, the subcritical transition between laminar and turbulent flows, viewed in a statistical physics framework as a discontinuous absorbing phase transitio
Externí odkaz:
http://arxiv.org/abs/2406.11324
Autor:
Guislain, Laura, Bertin, Eric
We study the effect of introducing separable quenched disorder on a non-equilibrium mean-field spin model exhibiting a phase transition to an oscillating state in the absence of disorder, due to non-reciprocal interactions. In the disordered model, t
Externí odkaz:
http://arxiv.org/abs/2406.03874
Autor:
Guislain, Laura, Bertin, Eric
We study the onset of collective oscillations at low temperature in a three-dimensional spin model with non-reciprocal short-range interactions. Performing numerical simulations of the model, the presence of a continuous phase transition to global os
Externí odkaz:
http://arxiv.org/abs/2405.13925
Autor:
Guislain, Laura, Bertin, Eric
Systems with a complex dynamics like glasses or models of biological evolution are often pictured in terms of complex landscapes, with a large number of possible collective states. We show on the example of a stochastic spin model with non-reciprocal
Externí odkaz:
http://arxiv.org/abs/2405.08452
In open water, social fish gather to form schools, in which fish generally align with each other. In this work, we study how this social behavior evolves when perturbed by artificial obstacles. We measure the collective behavior of a group of zebrafi
Externí odkaz:
http://arxiv.org/abs/2402.03123
The yielding transition in athermal complex fluids can be interpreted as an absorbing phase transition between an elastic, absorbing state with high mesoscopic degeneracy and a flowing, active state. We characterize quantitatively this phase transiti
Externí odkaz:
http://arxiv.org/abs/2401.11797
Autor:
Bertin, Eric, Solon, Alexandre
We propose a one-dimensional model of active particles interpolating between quorum sensing models used in the study of motility-induced phase separation (MIPS) and models of congestion of traffic flow on a single-lane highway. Particles have a targe
Externí odkaz:
http://arxiv.org/abs/2312.13963
Autor:
Guislain, Laura, Bertin, Eric
Publikováno v:
Phys. Rev. B 109, 184203 (2024)
In a statistical physics context, inverse problems consist in determining microscopic interactions such that a system reaches a predefined collective state. A complex collective state may be prescribed by specifying the overlap distribution between m
Externí odkaz:
http://arxiv.org/abs/2312.07453
Autor:
Bertin, Eric, Ladieu, François
Experimental measurements of nonlinear dielectric response in glassformers like supercooled glycerol or propylene carbonate have been interpreted as providing evidence for a growing thermodynamic length scale when lowering temperature. A heuristic pi
Externí odkaz:
http://arxiv.org/abs/2312.04267
Autor:
Guislain, Laura, Bertin, Eric
Publikováno v:
Phys. Rev. E 109, 034131 (2024)
We study a nonequilibrium ferromagnetic mean-field spin model exhibiting a phase with spontaneous temporal oscillations of the magnetization, on top of the usual paramagnetic and ferromagnetic phases. This behavior is obtained by introducing dynamic
Externí odkaz:
http://arxiv.org/abs/2310.13488