Vortex formation of a Bose-Einstein condensate in a rotating deep optical lattice

Journal Article · Tue Nov 15 04:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.053623· OSTI ID:22093604

Kato, Akira; Nakano, Yuki; Kasamatsu, Kenichi; Matsui, Tetsuo ^[1]

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1. Department of Physics, Kinki University, Higashi-Osaka, Osaka 577-8502 (Japan)

We study the dynamics of vortex nucleation and lattice formation in a Bose-Einstein condensate in a rotating square optical lattice by numerical simulations of the Gross-Pitaevskii equation. Different dynamical regimes of vortex nucleation are found, depending on the depth and period of the optical lattice. We make an extensive comparison with the experiments by R. A. Williams et al.[Phys. Rev. Lett. 104, 050404 (2010)], especially focusing on the issues of the critical rotation frequency for the first vortex nucleation and the vortex number as a function of rotation frequency.

• OSTI ID: 22093604
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 84; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
NUCLEATION
ROTATION
VORTICES
WAVE EQUATIONS