Sep 17 – 21, 2022
Faculty of Physics, Astronomy and Applied Computer Science; Jagiellonian University
Europe/Warsaw timezone
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Fluctuations of work and heat in a driven entropic potential

Sep 18, 2022, 5:12 PM
3m
Faculty of Physics, Astronomy and Applied Computer Science; Jagiellonian University

Faculty of Physics, Astronomy and Applied Computer Science; Jagiellonian University

Łojasiewicza 11, 30-348 Kraków, Poland

Speaker

Mr Syed Yunus Ali Ali (Indian Institute of Technology Tirupati)

Description

We consider the motion of an over-damped Brownian particle in two-dimensional bilobal confinement driven by a periodic field in the presence of a transverse bias force (G). The confinement results in an entropic bistable potential in a reduced dimension. We calculate the work done and absorbed heat over a period and their mean and relative variance fluctuations in entropy and energy-dominated regimes. This system exhibits the entropic stochastic resonance phenomena. The stochastic resonance phenomena can be described by the mean value of work done and absorbed heat over a period as function of noise strength and frequency input. It is found that the heat fluctuations over a single period are always greater than the work fluctuations. We also discuss the applicability of steady-state fluctuation theorems in this system.

Primary author

Mr Syed Yunus Ali Ali (Indian Institute of Technology Tirupati)

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