Obtaining efficient thermal engines from interacting Brownian particles under time-periodic drivings
| Autor: | Iago N. Mamede, Pedro E. Harunari, Bruno A. N. Akasaki, Karel Proesmans, C. E. Fiore |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Condensed Matter - Mesoscale and Nanoscale Physics
Statistical Mechanics (cond-mat.stat-mech) Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Soft Condensed Matter (cond-mat.soft) FOS: Physical sciences TERMODINÂMICA (FÍSICO-QUÍMICA) Condensed Matter - Soft Condensed Matter Condensed Matter - Statistical Mechanics |
| Zdroj: | Mamede, I N, Harunari, P E, Akasaki, B A N, Proesmans, K & Fiore, C E 2022, ' Obtaining efficient thermal engines from interacting Brownian particles under time-periodic drivings ', Physical Review E, vol. 105, no. 2, 024106 . https://doi.org/10.1103/PhysRevE.105.024106 Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | We introduce an alternative route for obtaining reliable cyclic engines, based on two interacting Brownian particles under time-periodic drivings which can be used as a work-to-work converter or a heat engine. Exact expressions for the thermodynamic fluxes, such as power and heat, are obtained using the framework of stochastic thermodynamic. We then use these exact expression to optimize the driving protocols with respect to output forces, their phase difference. For the work-to-work engine, they are solely expressed in terms of Onsager coefficients and their derivatives, whereas nonlinear effects start to play a role since the particles are at different temperatures. Our results suggest that stronger coupling generally leads to better performance, but careful design is needed to optimize the external forces. |
| Databáze: | OpenAIRE |
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