Related papers: Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions

Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions

URL: http://arxiv.org/abs/2204.02966v2
Date: Mon, 31 Jul 2023 16:13:20 GMT
Title: Gauge Quantum Thermodynamics of Time-local non-Markovian Evolutions
Authors: Fernando Nicacio and Raphael N. P. Maia
Abstract summary: We deal with a generic time-local non-Markovian master equation. We define current and power to be process-dependent as in classical thermodynamics. Applying the theory to quantum thermal engines, we show that gauge transformations can change the machine efficiency.
Score: 77.34726150561087
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Dealing with a generic time-local non-Markovian master equation, we define current and power to be process-dependent as in classical thermodynamics. Each process is characterized by a symmetry transformation, a gauge of the master equation, and is associated with different amounts of heat and/or work. Once the symmetry requirement fixes the thermodynamical quantities, a consistent gauge interpretation of the laws of thermodynamics emerges. We also provide the necessary and sufficient conditions for a system to have a gauge-independent thermodynamical behavior and show that systems satisfying Quantum Detailed Balance conditions are gauge-independent. Applying the theory to quantum thermal engines, we show that gauge transformations can change the machine efficiency, however, yet constrained by the classical Carnot bound.

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