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Critical frequency for vortex nucleation in Bose-Fermi mixtures in optical lattices by Guilleumas, M.; Centelles, M.; Barranco, M.; Mayol, R.; Pi, M. is a scholarly article available to read on EtoBox.

What is Critical frequency for vortex nucleation in Bose-Fermi mixtures in optical lattices about?

We investigate within mean-field theory the influence of a one-dimensional optical lattice and of trapped degenerate fermions on the critical rotational frequency for vortex line creation in a Bose-Einstein condensate. We consider laser intensities of the lattice such that quantum coherence across the condensate is ensured. We find a sizable decrease of the thermodynamic critical frequency for vortex nucleation with increasing applied laser strength and suggest suitable parameters for experimental observation. Since 87Rb-40K mixtures may undergo collapse, we analyze the related question of how the optical lattice affects the mechanical stability of the system.

Author

Guilleumas, M.; Centelles, M.; Barranco, M.; Mayol, R.; Pi, M.

Published

2005

Language

EN