Condensation of `composite bosons' in a rotating BEC

Details Condensation of `composite bosons' in a rotating BEC Condensation of `composite bosons' in a rotating BEC

1999-06-17

arxiv.org/abs/cond-mat/9906282v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, Latex, 3 figures

Scientific paper

10.1103/PhysRevLett.84.6

We provide evidence for several novel phases in the dilute limit of rotating BECs. By exact calculation of wavefunctions and energies for small numbers of particles, we show that the states near integer angular momentum per particle are best considered condensates of composite entities, involving vortices and atoms. We are led to this result by explicit comparison with a description purely in terms of vortices. Several parallels with the fractional quantum Hall effect emerge, including the presence of the Pfaffian state.

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