The physical basis for Parrondo's games

Details The physical basis for Parrondo's games The physical basis for Parrondo's games

2002-08-24

arxiv.org/abs/cond-mat/0208470v1

Physics

Condensed Matter

Statistical Mechanics

10 pages and 2 figures

Scientific paper

Several authors have implied that the original inspiration for Parrondo's games was a physical system called a ``flashing Brownian ratchet The relationship seems to be intuitively clear but, surprisingly, has not yet been established with rigor. In this paper, we apply standard finite-difference methods of numerical analysis to the Fokker-Planck equation. We derive a set of finite difference equations and show that they have the same form as Parrondo's games. Parrondo's games, are in effect, a particular way of sampling a Fokker-Planck equation. Physical Brownian ratchets have been constructed and have worked. It is hoped that the finite element method presented here will be useful in the simulation and design of flashing Brownian ratchets.

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