Resonant formation of strongly correlated paired states in rotating Bose gases

Details Resonant formation of strongly correlated paired states in rotating Bose gases Resonant formation of strongly correlated paired states in rotating Bose gases

2003-05-16

arxiv.org/abs/cond-mat/0305399v2

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevA.69.053603

We propose increasing the fractional quantum Hall gap of a rapidly rotating Bose gas by increasing the interatomic interactions via a Feshbach resonance. The generation of molecules by the resonance causes pair correlations to grow throughout the system effecting the ground state. By an extension of the usual Chern-Simons theory, built of composite atoms and molecules, we are able to account for these resonance effects. We find that the resulting ground state evolves from a Laughlin wavefunction to a unique paired wavefunction as one approaches the resonance.

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