Spin-phase-space-entropy production

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dc.creatorSantos, Jader Pereira dos
dc.creatorCéleri, Lucas Chibebe
dc.creatorBrito, Frederico Borges de
dc.creatorLandi, Gabriel Teixeira
dc.creatorPaternostro, Mauro
dc.date.accessioned2024-02-27T12:04:37Z
dc.date.available2024-02-27T12:04:37Z
dc.date.issued2018
dc.description.abstractQuantifying the degree of irreversibility of an open system dynamics represents a problem of both fundamental and applied relevance. Even though a well-known framework exists for thermal baths, the results give diverging results in the limit of zero temperature and are also not readily extended to nonequilibrium reservoirs, such as dephasing baths. Aimed at filling this gap, in this paper we introduce a phase-space-entropy production framework for quantifying the irreversibility of spin systems undergoing Lindblad dynamics. The theory is based on the spin Husimi-Q function and its corresponding phase-space entropy, known as Wehrl entropy. Unlike the von Neumann entropy production rate, we show that in our framework, the Wehrl entropy production rate remains valid at any temperature and is also readily extended to arbitrary nonequilibrium baths. As an application, we discuss the irreversibility associated with the interaction of a two-level system with a single-photon pulse, a problem which cannot be treated using the conventional approach.
dc.identifier.citationSANTOS, Jader P. et al. Spin-phase-space-entropy production. Physical Review A, College Park, v. 97, e052123, 2018. DOI: 10.1103/PhysRevA.97.052123. Disponível em: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.052123. Acesso em 24 fev. 2025.
dc.identifier.doi10.1103/PhysRevA.97.052123
dc.identifier.issn2469-9926
dc.identifier.issne- 2469-9934
dc.identifier.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.97.052123
dc.language.isoeng
dc.publisher.countryEstados unidos
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.titleSpin-phase-space-entropy production
dc.typeArtigo

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