Prethermal inverse Mpemba effect

• URL: http://arxiv.org/abs/2507.04669v1
• Date: Mon, 07 Jul 2025 05:20:28 GMT
• Title: Prethermal inverse Mpemba effect
• Authors: Koudai Sugimoto, Tomotaka Kuwahara, Keiji Saito,
• Abstract summary: The inverse Mpemba effect is a counterintuitive phenomenon in which a system relaxes to the final state more rapidly when starting from a lower initial temperature.<n>We extend this concept to the relaxation toward a prethermal state in isolated quantum systems.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The inverse Mpemba effect is a counterintuitive phenomenon in which a system, initially in thermal equilibrium and prepared at different temperatures below that of the final equilibrium state, relaxes to the final state more rapidly when starting from a lower initial temperature. We extend this concept to the relaxation toward a prethermal state in isolated quantum systems. By examining a simple model that exhibits prethermalization, we demonstrate that this effect indeed manifests under periodic driving. We further discuss the realization of this phenomenon in a variety of systems within a unified theoretical framework.

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