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arXiv · 1003.1559

Heat transport in quantum spin chains: the relevance of integrability

Jinshan Wu·Mona Berciu
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Abstract

We investigate heat transport in various quantum spin chains, using the projector operator technique. We find that anomalous heat transport is linked not to the integrability of the Hamiltonian, but to whether it can be mapped to a model of non-interacting fermions. Our results also suggest how seemingly anomalous transport may occur at low temperatures in a much wider class of models.

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Jinshan Wu, Mona Berciu. 2010-03-08. Heat transport in quantum spin chains: the relevance of integrability. https://doi.org/10.1103/physrevb.83.214416

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