Kelvin Waves of Quantized Vortex Lines in Trapped Bose-Einstein Condensates
Journal Article
·
· Physical Review Letters
- Department of Physics, Okayama University, Okayama 700-8530 (Japan)
We have theoretically investigated Kelvin waves of quantized vortex lines in trapped Bose-Einstein condensates. Counterrotating perturbation induces an elliptical instability to the initially straight vortex line, driven by a parametric resonance between a quadrupole mode and a pair of Kelvin modes of opposite momenta. Subsequently, Kelvin waves rapidly decay to longer wavelengths emitting sound waves in the process. We present a modified Kelvin wave dispersion relation for trapped superfluids and propose a simple method to excite Kelvin waves of specific wave number.
- OSTI ID:
- 21134100
- Journal Information:
- Physical Review Letters, Vol. 101, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.101.020402; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kelvin-Tkachenko waves of few-vortex arrays in trapped Bose-Einstein condensates
Kelvin mode of a vortex in a nonuniform Bose-Einstein condensate
Condition for the existence of complex modes in a trapped Bose-Einstein condensate with a highly quantized vortex
Journal Article
·
Wed Dec 15 00:00:00 EST 2010
· Physical Review. A
·
OSTI ID:21134100
Kelvin mode of a vortex in a nonuniform Bose-Einstein condensate
Journal Article
·
Thu Apr 01 00:00:00 EST 2004
· Physical Review. A
·
OSTI ID:21134100
Condition for the existence of complex modes in a trapped Bose-Einstein condensate with a highly quantized vortex
Journal Article
·
Mon Oct 15 00:00:00 EDT 2007
· Physical Review. A
·
OSTI ID:21134100
+2 more