Uniform relativistic motion through a thermal bath as a thermodynamic resource

• URL: http://arxiv.org/abs/2512.07567v1
• Date: Mon, 08 Dec 2025 13:59:48 GMT
• Title: Uniform relativistic motion through a thermal bath as a thermodynamic resource
• Abstract summary: We show that a quantum system undergoing motion with uniform relativistic velocity is driven into a non-equilibrium steady-state (NESS) solely due to its motion.<n>We find that the resulting steady-states fall into two distinct classes: (i) NESSs with persistent probability currents, and (ii) current-free non-Gibbs steady states characterized by a frequency-dependent effective inverse temperature.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We show that a quantum system undergoing motion with uniform relativistic velocity through a thermal bath consisting of a massless scalar field is generically driven into a non-equilibrium steady-state (NESS) solely due to its motion, even in the absence of external driving or multiple baths. The relative motion between the system and the bath breaks detailed balance, preventing thermalization to a Gibbs state. We find that the resulting steady-states fall into two distinct classes: (i) NESSs with persistent probability currents, and (ii) current-free non-Gibbs steady states characterized by a frequency-dependent effective inverse temperature. We demonstrate, using a three-level system, that NESSs with probability current can function as noisy stochastic clock, while current-free non-Gibbs steady states possess non-zero non-equilibrium free energy, indicating their potential as a quantum battery for work extraction or storage.

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