| Texto completo | |
| Autor(es): |
Fiore, Carlos E.
Número total de Autores: 1
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| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW E; v. 112, n. 6, p. 6-pg., 2025-12-01. |
| Resumo | |
We introduce and analyze a class of heat engines composed of interacting units, in which the thermal reservoir is associated with the neighborhood surrounding each unit. These systems can be mapped onto stochastic opinion models and are characterized by collective behavior at low temperatures, displaying different types of phase transitions, marked by spontaneous symmetry breaking and classifications that depend on topology, the neighborhood, and other ingredients. For the case of contact with two thermal baths-equivalent to each unit having k = 4 nearest neighbors-the system can be tuned to operate at maximum power without sacrificing the efficiency eta and/or increasing dissipation sigma<overline>. All of them are related by a general expression when the worksource stems from different interaction energies. The heat engine placed in contact with more than three reservoirs is more revealing, showing that the intermediate thermal reservoir can be conveniently adjusted to achieve the desired compromise between power P, efficiency, and dissipation. The influence of lattice topology (regular and random-regular networks), its relationship with collective operation, and distinct ratios between the temperatures of the thermal baths, has also been investigated. (AU) | |
| Processo FAPESP: | 24/03763-0 - Termodinâmica estocástica de máquinas térmicas coletivas: Reservatórios finitos, flutuações e diferentes projeções |
| Beneficiário: | Carlos Eduardo Fiore dos Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 24/08157-0 - Termodinâmica de máquinas térmicas coletivas: Estudo sobre partículas ativas e regimes ótimos |
| Beneficiário: | Vitória Tesser Henkes |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |
| Processo FAPESP: | 22/15453-0 - Materiais quânticos correlacionados |
| Beneficiário: | Eduardo Miranda |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 23/17704-2 - Termodinâmica estocástica de máquinas térmicas coletivas: reservatórios finitos e partículas ativas |
| Beneficiário: | Iago Nascimento Mamede |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |