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Moiré superlattice structures in kicked Bose-Einstein condensates

  • Author(s): O'Riordan, LJ
  • White, AC
  • Busch, T
  • et al.
Abstract

© 2016 American Physical Society. Vortex lattices in rapidly rotating Bose-Einstein condensates lead to a periodic modulation of the superfluid density with a triangular symmetry. Here we show that this symmetry can be combined with an external perturbation in order to create superlattice structures with two or more periodicities. Considering a condensate that is kicked by an optical lattice potential, we find the appearance of transient moiré lattice structures, which can be identified using the kinetic energy spectrum.

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