Beliaev Damping and Kelvin Mode Spectroscopy of a Condensate in the Presence of a Vortex Line
T. Mizushima, M. Ichioka, K. Machida
Abstract
It is demonstrated theoretically that the counter-rotating quadrupole mode in a vortex of Bose-Einstein condensates can decay into a pair of Kelvin modes via Beliaev process. We calculate the spectral weight of density-response function within Bogoliubov framework, taking account of both Beliaev and Landau processes. Good agreement with experiment on 87Rb by Bretin et al. [cond-mat/0211101] allows us to unambigiously identify the decayed mode as the Kelvin wave propagating along a vortex line.
Create a lesson
Related papers
Competing routes to spontaneous flow in confined active nematics
Rahil N. Valani, Vedad Dzanic, Sumesh P. Thampi et al.
Scaling and Condensation of Dry Active Matter Around Circular Obstacles
Felipe P. S. Júnior, F. Q. Potiguar, Jorge L. C. Domingos et al.
Active Hydrodynamics Couples Polymer Organization, Shape Fluctuations, and Motility in Deformable Droplets
Ritu Raj, P. B. Sunil Kumar
Inferring interactions between active particles using harmonic traps
Arnaud Compagnie, Joscha Mecke, Ivo Buttinoni et al.
Spontaneous filament formation and network self-assembly via active phase separation
Elena Lucas, Varun Venkatesh, Amin Doostmohammadi
Sensitivity of Nucleation Thermodynamics and Kinetics to the Treatment of Long-Range Interactions
Fernanda Sulantay Vargas, Kimia Sinaeian, Amir Haji-Akbari