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arXiv · 1511.07593

Moir\'e super-lattice structures in kicked Bose-Einstein condensates

L. J. O'Riordan·A. C. White·Th. Busch
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Abstract

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 super-lattice structures with two or more periodicities. Considering a condensate which is kicked by an optical lattice potential, we find the appearance of transient moir\'e lattice structures, which can be identified using the kinetic energy spectrum.

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L. J. O'Riordan, A. C. White, Th. Busch. 2015-11-24. Moir\'e super-lattice structures in kicked Bose-Einstein condensates. https://doi.org/10.1103/physreva.93.023609

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