Rigidity generation by nonthermal fluctuations.
Active stabilization in systems with zero or negative stiffness is an essential element of a wide variety of biological processes. We study a prototypical example of this phenomenon and show how active rigidity, interpreted as a formation of a pseudowell in the effective energy landscape, can be generated in an overdamped stochastic system. We link the transition from negative to positive rigidity with time correlations in the additive noise, and we show that subtle differences in the out-of-equilibrium driving may compromise the emergence of a pseudowell.
LITEN, CEA-Grenoble, 17 rue des Martyrs, 38054 Grenoble, France.
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Sheshka
Mathematical Institute, University of Oxford, Oxford OX26GG, United Kingdom.|Engineering Department, University of Cambridge, Cambridge CB2 1PZ, United Kingdom.
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Recho
LMS, CNRS-UMR 7649, École Polytechnique, 91128 Palaiseau, France.|Physique et Mecanique des Milieux Heterogenes CNRS -- UMR 7636 ESPCI ParisTech 10 Rue Vauquelin, 75005 Paris, France.
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Truskinovsky