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arXiv · 1501.02395

Exact asymptotics of the current in boundary dissipated quantum chains in large external fields

Zala Lenarčič·Tomaž Prosen
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Abstract

Boundary driven quantum master equation for a general inhomogeneous (non-integrable) anisotropic Heisenberg spin $1/2$ chain, or an equivalent nearest neighbor interacting spinless fermion chain, is considered in the presence of a strong external field $f$. We present an exact closed form expression for large $f$ asymptotics of the current in the presence of pure incoherent source and sink dissipation at the boundaries. In application we demonstrate arbitrary large current rectification in the presence of interaction.

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Zala Lenarčič, Tomaž Prosen. 2015-01-10. Exact asymptotics of the current in boundary dissipated quantum chains in large external fields. https://doi.org/10.1103/physreve.91.030103

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