Impact of rough potentials in rocked ratchet performance

S. Camargo and C. Anteneodo

Physica A: Statistical Mechanics and its Applications, 2018, vol. 495, issue C, 114-125

Abstract: We consider thermal ratchets modeled by overdamped Brownian motion in a spatially periodic potential with a tilting process, both unbiased on average. We investigate the impact of the introduction of roughness in the potential profile, over the flux and efficiency of the ratchet. Both amplitude and wavelength that characterize roughness are varied. We show that depending on the ratchet parameters, rugosity can either spoil or enhance the ratchet performance.

Keywords: Brownian ratchet; Transport processes; Roughness (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:495:y:2018:i:c:p:114-125

DOI: 10.1016/j.physa.2017.12.074

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