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arXiv:1312.4011

Spin-Orbit Driven Transitions Between Mott Insulators and Finite Momentum Superfluids of Bosons in Optical Lattices

Mi Yan, Yinyin Qian, Hoi-Yin Hui, Ming Gong, Chuanwei Zhang, V. W. Scarola

Published Dec 14, 2013• 2 citations
arXivHTMLPDF

Abstract

Synthetic spin-orbit coupling in ultracold atomic gases can be taken to extremes rarely found in solids. We study a two dimensional Hubbard model of bosons in an optical lattice in the presence of spin-orbit coupling strong enough to drive direct transitions from Mott insulators to superfluids. Here we find phase-modulated superfluids with finite momentum that are generated entirely by spin-orbit coupling. We investigate the rich phase patterns of the superfluids, which may be directly probed using time-of-flight imaging of the spin-dependent momentum distribution.

DOI
10.48550/arxiv.1312.4011

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