Effect of phonon-phonon interactions on localization

dc.contributor.author	Dhar, Abhishek
dc.contributor.author	Lebowitz, J.L.
dc.date.accessioned	2008-06-28T10:59:34Z
dc.date.available	2008-06-28T10:59:34Z
dc.date.issued	2008-04
dc.description	Open Access.	en
dc.description.abstract	We study the heat current J in a classical one-dimensional disordered chain with on-site pinning and with ends connected to stochastic thermal reservoirs at different temperatures. In the absence of anharmonicity all modes are localized and there is a gap in the spectrum. Consequently J decays exponentially with system size N. Using simulations we find that even a small amount of anharmonicity leads to a J~1/N dependence, implying diffusive transport of energy.	en
dc.format.extent	223440 bytes
dc.format.mimetype	application/pdf
dc.identifier.citation	Physical Review Letters, 2008, Vol.100, 134301	en
dc.identifier.issn	E-ISSN: 1079-7114
dc.identifier.issn	P-ISSN: 0031-9007
dc.identifier.uri	http://hdl.handle.net/2289/3577
dc.language.iso	en	en
dc.publisher	American Physical Society	en
dc.relation.uri	http://dx.doi.org/10.1103/PhysRevLett.100.134301	en
dc.relation.uri	http://arxiv.org/abs/0708.4171	en
dc.rights	2008 The American Physical Society	en
dc.title	Effect of phonon-phonon interactions on localization	en
dc.type	Article	en

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