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Title: Effect of phonon-phonon interactions on localization
Authors: Dhar, Abhishek
Lebowitz, J.L.
Issue Date: Apr-2008
Publisher: American Physical Society
Citation: Physical Review Letters, 2008, Vol.100, 134301
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.
Description: Open Access.
ISSN: E-ISSN: 1079-7114
P-ISSN: 0031-9007
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Copyright: 2008 The American Physical Society
Appears in Collections:Research Papers (TP)

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