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Strong Anderson Localization in Cold Atom Quantum Quenches

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2014

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Micklitz, Tobias
Altland, Alexander

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https://doi.org/10.1103/PhysRevLett.112.110602
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Physical Review Letters. 2014, 112(11), 110602. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.112.110602

Zusammenfassung

Signatures of Anderson localization in the momentum distribution of a cold atom cloud after a quantum quench are studied. We consider a quasi-one-dimensional cloud initially prepared in a well-defined momentum state, and expanding for some time in a disorder speckle potential. Quantum interference generates a peak in the forward scattering amplitude which, unlike the common weak localization backscattering peak, is a signature of strong Anderson localization. We present a nonperturbative, and fully time resolved description of the phenomenon, covering the entire diffusion-to-localization crossover. Our results should be observable by present day experiments.

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ISO 690MICKLITZ, Tobias, Cord A. MÜLLER, Alexander ALTLAND, 2014. Strong Anderson Localization in Cold Atom Quantum Quenches. In: Physical Review Letters. 2014, 112(11), 110602. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.112.110602
BibTex
@article{Micklitz2014Stron-29083,
  year={2014},
  doi={10.1103/PhysRevLett.112.110602},
  title={Strong Anderson Localization in Cold Atom Quantum Quenches},
  number={11},
  volume={112},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Micklitz, Tobias and Müller, Cord A. and Altland, Alexander},
  note={Article Number: 110602}
}
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