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arXiv · 1509.02753

Pseudo energy wells in active systems

Raman Sheshka·Pierre Recho·Lev Truskinovsky
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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 at a micro-scale and show how active rigidity, interpreted as a formation of a pseudo-well in the effective energy landscape, can be generated in an overdamped ratchet-type stochastic system. We link the transition from negative to positive rigidity with correlations in the noise and show that subtle differences in out-of-equilibrium driving may compromise the emergence of a pseudo-well.

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Raman Sheshka, Pierre Recho, Lev Truskinovsky. 2015-09-09. Pseudo energy wells in active systems. https://doi.org/10.1103/physreve.93.052604

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