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Exact Groundstates of Rotating Bose Gases close to a Feshbach Resonance

N. R. Cooper
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Abstract

We study the groundstates of rotating Bose gases when interactions are affected by a nearby Feshbach resonance. We show that exact groundstates at high angular momentum can be found analytically for a general and realistic model for the resonant interactions. We identify parameter regimes where the exact groundstates are exotic fractional quantum Hall states, the excitations of which obey non-abelian exchange statistics.

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N. R. Cooper. 2003-08-14. Exact Groundstates of Rotating Bose Gases close to a Feshbach Resonance. https://doi.org/10.1103/physrevlett.92.220405

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