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

Authors :: Giulio Casati
Carlos Mejía-Monasterio
Tomaz Prosen
Source :: Europhysics Letters (EPL). 72:520-526
Publication Year :: 2005
Publisher :: IOP Publishing, 2005.
Abstract: 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.<br />Comment: 4 pages, 5 figures, RevTeX