Kelvin-Tkachenko waves of few-vortex arrays in trapped Bose-Einstein condensates

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063627· OSTI ID:21528950

Simula, T P ^[1]; Machida, K ^[2]

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1. School of Physics, Monash University, Victoria 3800 (Australia)
2. Department of Physics, Okayama University, Okayama 700-8530 (Japan)

We have calculated the low-lying elementary excitations of three-dimensional few-vortex arrays in trapped Bose-Einstein condensates. The number of different Kelvin-Tkachenko vortex wave branches found matches the number of vortices in the condensate. The lowest odd-parity modes exhibit superfluid gyroscopic vortex motion. Experimentally, these modes could be excited and observed individually or in connection with the formation and decay of quantum turbulence.

• OSTI ID: 21528950
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063627; (c) 2010 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
BOSE-EINSTEIN CONDENSATION
EXCITATION
PARITY
QUANTUM MECHANICS
SUPERFLUIDITY
THREE-DIMENSIONAL CALCULATIONS
TRAPPING
TURBULENCE
VORTICES
ENERGY-LEVEL TRANSITIONS
MECHANICS
PARTICLE PROPERTIES