P-band induced self-organization and dynamics with repulsively driven ultracold atoms in an optical cavity

P. Zupancic; D. Dreon; X. Li; A. Baumgärtner; A. Morales; W. Zheng; N. R. Cooper; T. Esslinger; T. Donner

doi:10.1103/physrevlett.123.233601

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arXiv · 1905.10377

P-band induced self-organization and dynamics with repulsively driven ultracold atoms in an optical cavity

P. Zupancic·D. Dreon·X. Li·A. Baumgärtner·A. Morales·W. Zheng·N. R. Cooper·T. Esslinger·T. Donner

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Abstract

We investigate a Bose-Einstein condensate strongly coupled to an optical cavity via a repulsive optical lattice. We detect a stable self-ordered phase in this regime, and show that the atoms order through an antisymmetric coupling to the P-band of the lattice, limiting the extent of the phase and changing the geometry of the emergent density modulation. Furthermore, we find a non-equilibrium phase with repeated intense bursts of the intra-cavity photon number, indicating non-trivial driven-dissipative dynamics.

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P. Zupancic, D. Dreon, X. Li, A. Baumgärtner, A. Morales, W. Zheng, N. R. Cooper, T. Esslinger, T. Donner. 2019-05-24. P-band induced self-organization and dynamics with repulsively driven ultracold atoms in an optical cavity. https://doi.org/10.1103/physrevlett.123.233601

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