Rigidity generation by nonthermal fluctuations.
basic_science · Level V
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- Record sourced from PubMed, PMID 27300948.
- Also identified by DOI 10.1103/PhysRevE.93.052604.
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Abstract
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.