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arXiv · 1803.01803

Formation of a spin texture in a quantum gas coupled to a cavity

M. Landini·N. Dogra·K. Kroeger·L. Hruby·T. Donner·T. Esslinger
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Abstract

We observe cavity mediated spin-dependent interactions in an off-resonantly driven multi-level atomic Bose-Einstein condensate that is strongly coupled to an optical cavity. Applying a driving field with adjustable polarization, we identify the roles of the scalar and the vectorial components of the atomic polarizability tensor for single and multi-component condensates. Beyond a critical strength of the vectorial coupling, we observe a spin texture in a condensate of two internal states, providing perspectives for global dynamic gauge fields and self-consistently spin-orbit coupled gases.

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M. Landini, N. Dogra, K. Kroeger, L. Hruby, T. Donner, T. Esslinger. 2018-03-05. Formation of a spin texture in a quantum gas coupled to a cavity. https://doi.org/10.1103/physrevlett.120.223602

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