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Echo spectroscopy of Anderson localization

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2015

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Micklitz, Tobias
Altland, Alexander

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https://doi.org/10.1103/PhysRevB.91.064203
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Physical Review B. 2015, 91(6), 064203. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.91.064203

Zusammenfassung

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.

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ISO 690MICKLITZ, Tobias, Cord A. MÜLLER, Alexander ALTLAND, 2015. Echo spectroscopy of Anderson localization. In: Physical Review B. 2015, 91(6), 064203. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.91.064203
BibTex
@article{Micklitz2015spect-30878,
  year={2015},
  doi={10.1103/PhysRevB.91.064203},
  title={Echo spectroscopy of Anderson localization},
  number={6},
  volume={91},
  issn={0163-1829},
  journal={Physical Review B},
  author={Micklitz, Tobias and Müller, Cord A. and Altland, Alexander},
  note={Article Number: 064203}
}
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