Pseudo energy wells in active systems
Biological Physics
2016-05-11 v1 Soft Condensed Matter
Subcellular Processes
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.
Cite
@article{arxiv.1509.02753,
title = {Pseudo energy wells in active systems},
author = {Raman Sheshka and Pierre Recho and Lev Truskinovsky},
journal= {arXiv preprint arXiv:1509.02753},
year = {2016}
}