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arXiv · 1612.01503

Localization in open quantum systems

I. Yusipov·T. Laptyeva·S. Denisov·M. Ivanchenko
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Abstract

In an isolated single-particle quantum system a spatial disorder can induce Anderson localization. Being a result of interference, this phenomenon is expected to be fragile in the face of dissipation. Here we show that dissipation can drive a disordered system into a steady state with tunable localization properties. This can be achieved with a set of identical dissipative operators, each one acting non-trivially only on a pair of neighboring sites. Operators are parametrized by a uniform phase, which controls selection of Anderson modes contributing to the state. On the microscopic level, quantum trajectories of a system in a localized steady regime exhibit intermittent dynamics consisting of long-time sticking events near selected modes interrupted by jumps between them.

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I. Yusipov, T. Laptyeva, S. Denisov, M. Ivanchenko. 2016-12-05. Localization in open quantum systems. https://doi.org/10.1103/physrevlett.118.070402

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