Splitting Times of Doubly Quantized Vortices in Dilute Bose-Einstein Condensates

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.110406· OSTI ID:20860820

Huhtamaeki, J A. M.; Pietilae, V; Virtanen, S M. M. ^[1]; Moettoenen, M ^[1]; Isoshima, T ^[2]

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1. Laboratory of Physics, Helsinki University of Technology, P.O. Box 4100, FI-02015 TKK (Finland)
2. Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan (China)

Recently, the splitting of a topologically created doubly quantized vortex into two singly quantized vortices was experimentally investigated in dilute atomic cigar-shaped Bose-Einstein condensates [Y. Shin et al., Phys. Rev. Lett. 93, 160406 (2004)]. In particular, the dependency of the splitting time on the peak particle density was studied. We present results of theoretical simulations which closely mimic the experimental setup. We show that the combination of gravitational sag and time dependency of the trapping potential alone suffices to split the doubly quantized vortex in time scales which are in good agreement with the experiments.

• OSTI ID: 20860820
• Journal Information: Physical Review Letters, Vol. 97, Issue 11; Other Information: DOI: 10.1103/PhysRevLett.97.110406; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
POTENTIALS
QUANTIZATION
SIMULATION
TRAPPING
VORTICES