Brownian yet Non-Gaussian Heat Engine

Autor: Iyyappan, I., Thomas, Jetin E., Ghosh, Sibasish
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: We investigate the performance of a Brownian heat engine working in a heterogeneous thermal bath where the mobility fluctuates. Brownian particle is trapped by the time-dependent harmonic potential, by changing the stiffness coefficient and the bath temperatures, we perform a Stirling cycle. We numerically evaluated the average work, power and efficiency. We compare our results with the Brownian heat engine working in a homogeneous thermal bath. We find that for the normal diffusive system, the performance of a Gaussian heat engine serves as an upper bound. We also observe that the non-Gaussian position distribution decreases the stochastic heat engine performance.
Comment: Revised manuscript and comments are welcome
Databáze: arXiv