Time evolution of statistical properties of a radiation field described by a density operator that interpolates between pure and mixing states

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dc.creatorFerreira, Cristino Jose dos Santos
dc.creatorSilva, Tiago Moy da
dc.creatorBaseia, Basilio
dc.date.accessioned2023-12-05T12:08:10Z
dc.date.available2023-12-05T12:08:10Z
dc.date.issued2019
dc.description.abstractIn this work, we consider a different model of density operator and a heuristic procedure that interpolates a photonic system from pure to mixed states. It is interpreted as if, during the time evolution of the system, the variables of a (hidden) system reservoir being traced. The aim is to study the time evolution of statistical properties while the system loses its initial purity. For this purpose, the system impurity, the evolution of Mandel parameter and entropy were calculated. A comparison between Shannon and von Neumann entropies in the present scenario is done, which could be of interest in quantum information. Another comparison, between the present approach with the traditional treatment concerning decoherence of a system state, was also considered.
dc.identifier.citationFERREIRA, C. J. S.; SILVA, T. M.; BASEIA, B. Time evolution of statistical properties of a radiation field described by a density operator that interpolates between pure and mixing states. European Physical Journal B, Berlin, v. 92, e257, 2019. DOI: 10.1140/epjb/e2019-100335-3. Disponível em: https://link.springer.com/article/10.1140/epjb/e2019-100335-3. Acesso em: 13 set. 2023.
dc.identifier.doi10.1140/epjb/e2019-100335-3
dc.identifier.issn1434-6028
dc.identifier.issne- 1434-6036
dc.identifier.urihttps://link.springer.com/article/10.1140/epjb/e2019-100335-3
dc.language.isoeng
dc.publisher.countryAlemanha
dc.publisher.departmentInstituto de Física - IF (RMG)
dc.rightsAcesso Restrito
dc.titleTime evolution of statistical properties of a radiation field described by a density operator that interpolates between pure and mixing states
dc.typeArtigo

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