Inertial Reciprocating Photomotor

We present a theory for an inertial reciprocating Brownian motor driven by deterministic dichotomous fluctuations in the parameters of a Brownian particle and confinement potentials (which can be created by optical methods). In the case of parabolic potentials, equilibrium and non-equilibrium fluctu...

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Bibliographic Details
Published in:JETP letters 2022-12, Vol.116 (12), p.902-908
Main Authors: Rozenbaum, V. M., Shapochkina, I. V., Trakhtenberg, L. I.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Brownian motion
Coefficient of friction
Miscellaneous
Molecular
Optical and Plasma Physics
Optics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spintronics
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Summary:We present a theory for an inertial reciprocating Brownian motor driven by deterministic dichotomous fluctuations in the parameters of a Brownian particle and confinement potentials (which can be created by optical methods). In the case of parabolic potentials, equilibrium and non-equilibrium fluctuations turn out to be uncoupled; this fact makes it possible to reduce the solving the Klein–Kramers equation to a purely mechanical-dynamic problem. The inclusion of inertial effects leads to a nonmonotonic dependence of the average velocity of the motor (which characterizes the efficiency of converting the input energy due to potential fluctuations into the energy of the reciprocating motion) on the fluctuation frequency, as well as to resonant processes in the limit of small values of the friction coefficient.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364022602639