Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/1950
Title: Heat conduction in quantum harmonic chains with alternate masses and self-consistent thermal reservoirs.
Authors: Francisco Neto, Antônio
Lemos, Humberto César Fernandes
Pereira, Emmanuel Araújo
Issue Date: 2007
Citation: FRANCISCO NETO, A.; LEMOS, H. C. F. ; PEREIRA, E. A. Heat conduction in quantum harmonic chains with alternate masses and self-consistent thermal reservoirs. Physical Rewiew E, v. 76, n. 3 , p. 031116-1-031116-8, 2007. Disponível em: <http://pre.aps.org/pdf/PRE/v76/i3/e031116>. Acesso em: 30 nov. 2012.
Abstract: We consider the analytical investigation of the heat current in the steady state of the quantum harmonic chain of oscillators with alternate masses and self-consistent reservoirs. We analyze the thermal conductivity _ and obtain interesting properties: in the high temperature regime, where quantum and classical descriptions coincide, _ does not change with temperature, but it is quite sensitive to the difference between the alternate masses; and contrasting with this behavior, in the low temperature regime, _ becomes an explicit function of the temperature, but its dependence on the masses difference disappears. Our results reinforce the message that quantum effects cannot be neglected in the study of heat conduction in low temperatures.
URI: http://www.repositorio.ufop.br/handle/123456789/1950
ISSN: 10953787
metadata.dc.rights.license: O periódico Physical Review E permite o depósito da versão PDF do editor em Repositório Institucional. Fonte: Sherpa/Romeo <http://www.sherpa.ac.uk/romeo/search.php?issn=1539-3755> Acesso em 15 dez. 2013.
Appears in Collections:DEPRO - Artigos publicados em periódicos

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