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arXiv · 1106.0604

Integrable Mott insulators driven by finite electric field

Marcin Mierzejewski·Janez Bonca·Peter Prelovsek
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Abstract

We develop a method for extracting the steady nonequilibrium current from studies of driven isolated systems, applying it to the model of one-dimensional Mott insulator at high temperatures. While in the nonintegrable model the nonequilibrium conditions can be accounted by internal heating, the integrability leads to a strongly nonlinear dc response with vanishingly small dc conductivity in the linear--response regime. The finding is consistent with equilibrium results for dc limit of the optical conductivity determined in the presence of a weak and decreasing perturbation.

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Marcin Mierzejewski, Janez Bonca, Peter Prelovsek. 2011-06-03. Integrable Mott insulators driven by finite electric field. https://doi.org/10.1103/physrevlett.107.126601

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