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The irreversibility of relativistic time-dilation

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Autor(es):
Basso, Marcos L. W. ; Maziero, Jonas ; Celeri, Lucas C.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Classical and Quantum Gravity; v. 40, n. 19, p. 11-pg., 2023-10-05.
Resumo

The fluctuation relations, which characterize irreversible processes in nature, are among the most important results in non-equilibrium physics. In short, these relations say that it is exponentially unlikely for us to observe a time-reversed process and, thus, establish the thermodynamic arrow of time pointing from low to high entropy. On the other hand, fundamental physical theories are invariant under time-reversal symmetry. Although in Newtonian and quantum physics the emergence of irreversible processes, as well as fluctuation relations, is relatively well understood, many problems arise when relativity enters the game. In this work, by considering a specific class of spacetimes, we explore the question of how the time-dilation effect enters into the fluctuation relations. We conclude that a positive entropy production emerges as a consequence of both the special relativistic and the gravitational (enclosed in the equivalence principle) time-dilation effects. (AU)

Processo FAPESP: 22/09496-8 - Explorando os efeitos extremos da rotação e do campo eletromagnético na relatividade geral: novas soluções exatas e aproximações numéricas
Beneficiário:Marcos Leopoldo Wayhs Basso
Modalidade de apoio: Bolsas no Brasil - Doutorado