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arXiv · 1107.3830

Damping of Bloch oscillations in the Hubbard model

Martin Eckstein·Philipp Werner
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Abstract

Using nonequilibrium dynamical mean-field theory, we study the isolated Hubbard model in a static electric field in the limit of weak interactions. Linear response behavior is established at long times, but only if the interaction exceeds a critical value, below which the system exhibits an AC-type response with Bloch oscillations. The transition from AC to DC response is defined in terms of the universal long-time behavior of the system, which does not depend on the initial condition.

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Martin Eckstein, Philipp Werner. 2011-07-19. Damping of Bloch oscillations in the Hubbard model. https://doi.org/10.1103/physrevlett.107.186406

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