Resonant formation of strongly correlated paired states in rotating Bose gases
arXiv:cond-mat/0305399 · doi:10.1103/PhysRevA.69.053603
Abstract
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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- Many-body theory for systems with particle conversion: Extending the multiconfigurational time-dependent Hartree method
- Exact Groundstates of Rotating Bose Gases close to a Feshbach Resonance
- Analytic models of ultra-cold atomic collisions at negative energies for application to confinement-induced resonances