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arXiv · 1406.6915

Echo spectroscopy of Anderson localization

T. Micklitz·C. A. Müller·A. Altland
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Abstract

We propose a conceptually new framework to study the onset of Anderson localization in disordered systems. The idea is to expose waves propagating in a random scattering environment to a sequence of short dephasing pulses. The system responds through coherence peaks forming at specific echo times, each echo representing a particular process of quantum interference. We suggest a concrete realization for cold gases, where quantum interferences are observed in the momentum distribution of matter waves in a laser speckle potential. This defines a challenging, but arguably realistic framework promising to yield unprecedented insight into the mechanisms of Anderson localization.

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T. Micklitz, C. A. Müller, A. Altland. 2014-06-26. Echo spectroscopy of Anderson localization. https://doi.org/10.1103/physrevb.91.064203

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