Yonghong Yan, Feng Jiang, Hui Zhao
Published 2014-07-27Version 1
We consider energy (heat) transport in quantum systems, and establish a relationship between energy spread and energy current-current correlation function. The energy current-current correlation is related to thermal conductivity by the Green-Kubo formula, and thus this relationship allows us to study conductivity directly from the energy spread process. As an example, we investigate a spinless fermion model; the numerical results confirm the relationship.
Comments: 5 pages, 2 figures
Aspects of non-equilibrium in classical and quantum systems: slow relaxation and glasses, dynamical large deviations, quantum non-ergodicity, and open quantum dynamics
Excited state TBA and functional relations in spinless Fermion model
Onsager's regression hypothesis adjusted to quantum systems
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