The flashing Brownian ratchet and Parrondo’s paradox

A Brownian ratchet is a one-dimensional diffusion process that drifts towards a minimum of a periodic asymmetric sawtooth potential. A flashing Brownian ratchet is a process that alternates between two regimes, a one-dimensional Brownian motion and a Brownian ratchet, producing directed motion. Thes...

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Main Authors: S. N. Ethier, Jiyeon Lee
Format: Article
Language:English
Published: The Royal Society 2018-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171685
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author S. N. Ethier
Jiyeon Lee
author_facet S. N. Ethier
Jiyeon Lee
author_sort S. N. Ethier
collection DOAJ
description A Brownian ratchet is a one-dimensional diffusion process that drifts towards a minimum of a periodic asymmetric sawtooth potential. A flashing Brownian ratchet is a process that alternates between two regimes, a one-dimensional Brownian motion and a Brownian ratchet, producing directed motion. These processes have been of interest to physicists and biologists for nearly 25 years. The flashing Brownian ratchet is the process that motivated Parrondo’s paradox, in which two fair games of chance, when alternated, produce a winning game. Parrondo’s games are relatively simple, being discrete in time and space. The flashing Brownian ratchet is rather more complicated. We show how one can study the latter process numerically using a random walk approximation.
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spelling doaj.art-f45fe8f80cd94676aa08c7d98df2a67d2022-12-21T19:21:51ZengThe Royal SocietyRoyal Society Open Science2054-57032018-01-015110.1098/rsos.171685171685The flashing Brownian ratchet and Parrondo’s paradoxS. N. EthierJiyeon LeeA Brownian ratchet is a one-dimensional diffusion process that drifts towards a minimum of a periodic asymmetric sawtooth potential. A flashing Brownian ratchet is a process that alternates between two regimes, a one-dimensional Brownian motion and a Brownian ratchet, producing directed motion. These processes have been of interest to physicists and biologists for nearly 25 years. The flashing Brownian ratchet is the process that motivated Parrondo’s paradox, in which two fair games of chance, when alternated, produce a winning game. Parrondo’s games are relatively simple, being discrete in time and space. The flashing Brownian ratchet is rather more complicated. We show how one can study the latter process numerically using a random walk approximation.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171685brownian motionbrownian ratchetflashing brownian ratchetrandom walkparrondo's paradox
spellingShingle S. N. Ethier
Jiyeon Lee
The flashing Brownian ratchet and Parrondo’s paradox
Royal Society Open Science
brownian motion
brownian ratchet
flashing brownian ratchet
random walk
parrondo's paradox
title The flashing Brownian ratchet and Parrondo’s paradox
title_full The flashing Brownian ratchet and Parrondo’s paradox
title_fullStr The flashing Brownian ratchet and Parrondo’s paradox
title_full_unstemmed The flashing Brownian ratchet and Parrondo’s paradox
title_short The flashing Brownian ratchet and Parrondo’s paradox
title_sort flashing brownian ratchet and parrondo s paradox
topic brownian motion
brownian ratchet
flashing brownian ratchet
random walk
parrondo's paradox
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171685
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