Crossover from ballistic to diffusive thermal transport in quantum Langevin dynamics study of a harmonic chain connected to self-consistent reservoirs

Roy, Dibyendu

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3619

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DC Field	Value	Language
dc.contributor.author	Roy, Dibyendu	-
dc.date.accessioned	2008-07-31T10:02:49Z	-
dc.date.available	2008-07-31T10:02:49Z	-
dc.date.issued	2008-06	-
dc.identifier.citation	Physical Review E, 2008, Vol.77, 062102	en
dc.identifier.issn	E-ISSN: 1550-2376	-
dc.identifier.issn	P-ISSN: 1539-3755	-
dc.identifier.uri	http://hdl.handle.net/2289/3619	-
dc.description	Open Access	en
dc.description.abstract	Through an exact analysis using quantum Langevin dynamics, we demonstrate the crossover from ballistic to diffusive thermal transport in a harmonic chain with each site connected to Ohmic heat reservoirs. The temperatures of the two heat baths at the boundaries are specified from the beginning, whereas the temperatures of the interior heat reservoirs are determined self-consistently by demanding that in the steady state, on average, there is no heat current between any such (self-consistent) reservoir and the harmonic chain. The essence of our study is that the effective mean free path separating the ballistic regime of transport from the diffusive one emerges naturally.	en
dc.format.extent	91027 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	American Physical Society	en
dc.relation.uri	http://dx.doi.org/10.1103/PhysRevE.77.062102	en
dc.relation.uri	http://arxiv.org/abs/0803.0278	en
dc.rights	2008 American Physical Society	en
dc.title	Crossover from ballistic to diffusive thermal transport in quantum Langevin dynamics study of a harmonic chain connected to self-consistent reservoirs	en
dc.type	Article	en
Appears in Collections:	Research Papers (TP)

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