Fourier's law in a quantum spin chain and the onset of quantum chaos

We study heat transport in a nonequilibrium steady state of a quantum interacting spin chain. We provide clear numerical evidence of the validity of Fourier law. The regime of normal conductivity is shown to set in at the transition to quantum chaos.

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Bibliographic Details
Published in:Europhysics letters 2005-11, Vol.72 (4), p.520-526
Main Authors: Mejía-Monasterio, C, Prosen, T, Casati, G
Format: Article
Language:English
Subjects:
05.30.-d
05.45.Mt
05.70.Ln
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Summary:We study heat transport in a nonequilibrium steady state of a quantum interacting spin chain. We provide clear numerical evidence of the validity of Fourier law. The regime of normal conductivity is shown to set in at the transition to quantum chaos.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i2005-10267-y