title: Enhancement of entropic transport by intermediates.
abstract: Brownian particles confined in a two-dimensional enclosure that give rise to a bistable entropic potential are considered. With the introduction of an intermediate lobe, the mean first passage time from one lobe to another through the intermediate shows a turnover behavior with the variation of the stability of the entropic intermediate. The mean escape time shows a minimum for an optimal value of the barrier height of the intermediate state. A three-state model is proposed to explain the nonmonotonic behavior of the entropic transport.
authors.affiliation: Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700-032, India. juniordebasish@gmail.com
authors.forename: Debasish
authors.initials: D
authors.lastname: Mondal
mesh_terms: D000465:Algorithms; D001692:Biological Transport; D001703:Biophysics / Q000379:methods*; D004058:Diffusion; D019277:Entropy; D015233:Models, Statistical; D009038:Motion; D010825:Physics / Q000379:methods*; D011336:Probability; D013269:Stochastic Processes