{ "id": "2307.11985", "version": "v1", "published": "2023-07-22T05:33:30.000Z", "updated": "2023-07-22T05:33:30.000Z", "title": "Brownian yet non-Gaussian thermal machines", "authors": [ "I. Iyyappan", "Jetin E. Thomas", "Sibasish Ghosh" ], "comment": "Comments and suggestions are most welcome", "categories": [ "cond-mat.stat-mech", "cond-mat.soft" ], "abstract": "We investigate the performance of a Brownian thermal machine working in a heterogeneous heat bath. The mobility of the heat bath fluctuates and it is modelled as an Ornstein Uhlenbeck process. We trap the Brownian particle with time-dependent harmonic potential and by changing the stiffness coefficient and bath temperatures, we perform a Stirling cycle. We numerically calculate the average absorbed work, the average ejected heat and the performance of the heat pump. For shorter cycle times, we find that the performance of a Brownian yet non-Gaussian heat pump is significantly higher than the normal (Gaussian) heat pump. We numerically find the coefficient of performance at maximum heating power.", "revisions": [ { "version": "v1", "updated": "2023-07-22T05:33:30.000Z" } ], "analyses": { "keywords": [ "non-gaussian thermal machines", "performance", "ornstein uhlenbeck process", "brownian thermal machine", "time-dependent harmonic potential" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }