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arXiv · 1307.2762

Adiabatic Tracking of a State: a New Route to Nonequilibrium Physics

M. Moliner·P. Schmitteckert
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Abstract

We present a novel numerical approach to track the response of a quantum system to an external perturbation that is progressively switched-on. The method is applied, within the framework of the density matrix renormalization group technique, to track current-carrying states of interacting fermions in one dimension and in presence of an Aharonov-Bohm magnetic flux. This protocol allows us to access highly excited states. We also discuss the connection with the entanglement entropy of these excited states.

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M. Moliner, P. Schmitteckert. 2013-09-26. Adiabatic Tracking of a State: a New Route to Nonequilibrium Physics. https://doi.org/10.1103/physrevlett.111.120602

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