Statistical thermodynamics of the Fröhlich-Bose-Einstein condensation of magnons out of equilibrium

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorVannucchi, Fabio Stucchi [UNESP]-
Autor(es): dc.creatorLuzzi, Roberto-
Data de aceite: dc.date.accessioned2022-02-22T00:23:12Z-
Data de disponibilização: dc.date.available2022-02-22T00:23:12Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-09-18-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevE.100.032126-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/197984-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/197984-
Descrição: dc.descriptionThis work presents a nonequilibrium statistical-thermodynamic approach to the study of a Fröhlich-Bose-Einstein condensation of magnons under radio-frequency radiation pumping. Fröhlich-Bose-Einstein condensates display a complex behavior consisting in steady-state conditions to the emergence of a synergetic dissipative structure resembling the Bose-Einstein condensation of systems in equilibrium. Then a kind of two-fluid model arises: the normal nonequilibrium structure and the Fröhlich condensate, which is shown to be an attractor to the system. In this study we analyze some aspects of the irreversible thermodynamics of this dissipative complex system. We obtained the expression for the informational entropy of the two-fluid condensate and introduced an order parameter to characterize the role of the Fröhlich interaction in ordering the system. The analysis highlights the order increase due to the Fröhlich interaction. We also study the informational entropy production of the system, considering its internal and external parts. Finally, the Glansdorff-Prigogine criteria for evolution and (in)stability are verified.-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Biosciences-
Descrição: dc.descriptionCondensed Matter Physics Department Institute of Physics Gleb Wataghin State University of Campinas (UNICAMP)-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Biosciences-
Idioma: dc.languageen-
Relação: dc.relationPhysical Review E-
???dc.source???: dc.sourceScopus-
Título: dc.titleStatistical thermodynamics of the Fröhlich-Bose-Einstein condensation of magnons out of equilibrium-
Tipo de arquivo: dc.typelivro digital-
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