| Texto completo | |
| Autor(es): |
Filho, Fernando S.
;
Forao, Gustavo A. L.
;
Busiello, Daniel M.
;
Cleuren, B.
;
Fiore, Carlos E.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW RESEARCH; v. 5, n. 4, p. 12-pg., 2023-10-20. |
| Resumo | |
We introduce a class of stochastic engines in which the regime of units operating synchronously can boost the performance. Our approach encompasses a minimal setup composed of N interacting units placed in contact with two thermal baths and subjected to a constant driving worksource. The interplay between unit synchronization and interaction leads to an efficiency at maximum power between the Carnot eta(c) and the Curzon-Ahlborn bound eta(CA). Moreover, these limits can be respectively saturated maximizing the efficiency, and by simultaneous optimization of power and efficiency. We show that the interplay between Ising-like interactions and a collective ordered regime is crucial to operate as a heat engine. The main system features are investigated by means of a linear analysis near equilibrium, and developing an effective discrete-state model that captures the effects of the synchronous phase. The robustness of our findings extends beyond the all-to-all interactions and paves the way for the building of promising nonequilibrium thermal machines based on ordered structures. (AU) | |
| Processo FAPESP: | 21/03372-2 - Termodinâmica estocástica de transições de fase e de sistemas periódicos |
| Beneficiário: | Carlos Eduardo Fiore dos Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 21/13287-2 - Abordagem colisional para máquinas térmicas interagentes |
| Beneficiário: | Gustavo Antonio Leme Forão |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |