The role of initial coherence in the phase-space entropy production rate
- URL: http://arxiv.org/abs/2401.07833v1
- Date: Mon, 15 Jan 2024 16:58:36 GMT
- Title: The role of initial coherence in the phase-space entropy production rate
- Authors: Giorgio Zicari and Bar{\i}\c{s} \c{C}akmak and Mauro Paternostro
- Abstract summary: 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.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- 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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