Solution to the plateau problem in the Green-Kubo formula

Español, Pep, Torre, J. A. de la y Duque-Zumajo, D. . (2019) Solution to the plateau problem in the Green-Kubo formula. Physical Review

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Título Solution to the plateau problem in the Green-Kubo formula
Autor(es) Español, Pep
Torre, J. A. de la
Duque-Zumajo, D.
Materia(s) Física
Abstract Transport coefficients appearing in Markovian dynamic equations for coarse-grained variables have microscopic expressions given by Green-Kubo formulas. These formulas may suffer from the well-known plateau problem. The problem arises because the Green-Kubo running integrals decay as the correlation of the coarse-grained variables themselves. The usual solution is to resort to an extreme timescale separation, for which the plateau problem is minor. Within the context of Mori projection operator formulation, we offer an alternative expression for the transport coefficients that is given by a corrected Green-Kubo expression that has no plateau problem by construction. The only assumption is that the Markovian approximation is valid in such a way that transport coefficients can be defined, even in the case that the separation of timescales is not extreme.
Editor(es) American Physical Society
Fecha 2019-02-19
Formato application/pdf
Identificador bibliuned:DptoFF-FCIE-Articulos-Jespanol-0002
http://e-spacio.uned.es/fez/view/bibliuned:DptoFF-FCIE-Articulos-Jespanol-0002
DOI - identifier https://doi.org/10.1103/PhysRevE.99.022126
ISSN - identifier 2160-3308
Nombre de la revista Physical Review
Número de Volumen 99
Número de Issue 2
Publicado en la Revista Physical Review
Idioma eng
Versión de la publicación publishedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales La versión registrada de este artículo, publicada por primera vez en Physical Review (2019) 99-2, está disponible en línea en el sitio web de la editorial: American Physical Society, https://doi.org/10.1103/PhysRevE.99.022126
Notas adicionales The registered version of this paper, first published in Physical Review (2019) 99-2, is available online at the publisher's website: American Physical Society, https://doi.org/10.1103/PhysRevE.99.022126

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Creado: Mon, 18 Mar 2024, 18:02:01 CET