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Exploring quasicrystal dynamics with degenerate strontium

POSTER

Abstract

Ultracold atoms in 1D bichromatic optical lattices realize the Aubry-André-Harper model, enabling the dynamical study of localization, pseudo-disorder, and quasicrystals. We report recent results on the coherent control of Aubry-André localization by phasonic modulation, and the experimental realization of the kicked Aubry-André-Harper (kAAH) model via periodic pulsing of the secondary lattice. In the latter case, we explore the global phase diagram of the kAAH model using a Floquet apodization technique. We discuss extensions to these studies, including the implementation of time-reversed evolution in the Aubry-Andre model and the investigation of the interplay between disorder-induced localization and dynamic localization. Separately, we discuss planned upgrades and future directions including a scheme for phase-stabilized 2D optical lattices with tunable geometry.

Presenters

  • Anna R Dardia

    University of California, Santa Barbara

Authors

  • Anna R Dardia

    University of California, Santa Barbara

  • Toshihiko Shimasaki

    University of California, Santa Barbara

  • Yifei Bai

    University of California, Santa Barbara

  • Peter Dotti

    University of California, Santa Barbara

  • Jared E Pagett

    University of California, Santa Barbara, UCSB, University of California Santa Barbara

  • Esat Kondakci

    University of California Santa Barbara, University of California, Santa Barbara, UCSB

  • David M Weld

    UC Santa Barbara, University of California, Santa Barbara