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Controlling symmetry and localization with an artificial gauge field in a disordered quantum system

Author

Listed:
  • Clément Hainaut

    (Université de Lille)

  • Isam Manai

    (Université de Lille)

  • Jean-François Clément

    (Université de Lille)

  • Jean Claude Garreau

    (Université de Lille)

  • Pascal Szriftgiser

    (Université de Lille)

  • Gabriel Lemarié

    (Université de Toulouse, CNRS
    Sapienza University of Rome)

  • Nicolas Cherroret

    (Collège de France)

  • Dominique Delande

    (Collège de France)

  • Radu Chicireanu

    (Université de Lille)

Abstract

Anderson localization, the absence of diffusion in disordered media, draws its origins from the destructive interference between multiple scattering paths. The localization properties of disordered systems are expected to be dramatically sensitive to their symmetries. So far, this question has been little explored experimentally. Here we investigate the realization of an artificial gauge field in a synthetic (temporal) dimension of a disordered, periodically driven quantum system. Tuning the strength of this gauge field allows us to control the parity–time symmetry properties of the system, which we probe through the experimental observation of three symmetry-sensitive signatures of localization. The first two are the coherent backscattering, marker of weak localization, and the recently predicted coherent forward scattering, genuine interferential signature of Anderson localization. The third is the direct measurement of the β(g) scaling function in two different symmetry classes, allowing to demonstrate its universality and the one-parameter scaling hypothesis.

Suggested Citation

  • Clément Hainaut & Isam Manai & Jean-François Clément & Jean Claude Garreau & Pascal Szriftgiser & Gabriel Lemarié & Nicolas Cherroret & Dominique Delande & Radu Chicireanu, 2018. "Controlling symmetry and localization with an artificial gauge field in a disordered quantum system," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03481-9
    DOI: 10.1038/s41467-018-03481-9
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