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arXiv · 2401.07833

The role of initial coherence in the phase-space entropy production rate

Giorgio Zicari·Barış Çakmak·Mauro Paternostro
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Abstract

The second law of thermodynamics can be expressed in terms of entropy production, which can be used to quantify the degree of irreversibility of a process. In this Chapter, we consider the standard scenario of open quantum systems, where a system irreversibly interacts with an external environment. We show that the standard approach, based on von Neumann entropy, can be replaced by a phase-space formulation of the problem. In particular, we focus on spin systems that can be described using the so-called spin coherent states. We deploy this formalism to study the interplay between the entropy production rate and the initial quantum coherence available to the system.

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Giorgio Zicari, Barış Çakmak, Mauro Paternostro. 2024-01-15. The role of initial coherence in the phase-space entropy production rate. https://doi.org/10.1007/978-3-031-57904-2

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