Thermodynamics and Protection of Discrete-Time Crystals

• URL: http://arxiv.org/abs/2503.15134v2
• Date: Thu, 20 Mar 2025 09:15:03 GMT
• Title: Thermodynamics and Protection of Discrete-Time Crystals
• Authors: Gabriele Cenedese, Samuel T. Mister, Mauro Antezza, Giuliano Benenti, Gabriele De Chiara,
• Abstract summary: We present a detailed thermodynamic analysis of a Discrete-Time Crystals (DTC) in a one-dimensional spin-1/2 chain coupled to a thermal bath.<n>Our results reveal that the DTC signature inevitably decays in the presence of environmental noise.<n>We show that a periodic measurement scheme can mitigate the effects of decoherence, stabilizing the subharmonic oscillations of the DTC for extended periods.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Discrete-Time Crystals (DTC) are a non-equilibrium phase of matter characterized by the breaking of time-translation symmetry in periodically driven quantum systems. In this work, we present a detailed thermodynamic analysis of a DTC in a one-dimensional spin-1/2 chain coupled to a thermal bath. We derive a master equation from the microscopic model, and we explore key thermodynamic quantities, such as work, heat, and entropy production. Our results reveal that the DTC signature inevitably decays in the presence of environmental noise, but we show that a periodic measurement scheme can mitigate the effects of decoherence, stabilizing the subharmonic oscillations of the DTC for extended periods. These findings provide insights into the robustness of time-crystalline phases and potential strategies for protecting them in experimental settings.

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