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The irreversibility of relativistic time-dilation

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Author(s):
Basso, Marcos L. W. ; Maziero, Jonas ; Celeri, Lucas C.
Total Authors: 3
Document type: Journal article
Source: Classical and Quantum Gravity; v. 40, n. 19, p. 11-pg., 2023-10-05.
Abstract

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)

FAPESP's process: 22/09496-8 - Exploring the extreme effects ofrotation and electromagnetic fields in general relativity: new exact solutions and numerical approximations
Grantee:Marcos Leopoldo Wayhs Basso
Support Opportunities: Scholarships in Brazil - Doctorate