1. Echo spectroscopy of Anderson localization.
- Author
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Micklitz, T., Müller, C. A., and Altland, A.
- Subjects
- *
ANDERSON localization , *SPECTROMETRY , *SEMICONDUCTORS , *QUANTUM interference , *DE-Broglie waves , *SPECKLE interference - Abstract
We propose a 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, and discuss in detail corresponding echoes in momentum space for sequences of one and two dephasing pulses. Our proposal defines a challenging but arguably realistic framework promising to yield unprecedented insight into the mechanisms of Anderson localization. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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