Dissipative dynamics of superfluid vortices at non-zero temperatures
arXiv:0704.1971 · doi:10.1103/PhysRevLett.99.145301
Abstract
We consider the evolution and dissipation of vortex rings in a condensate at non-zero temperature, in the context of the classical field approximation, based on the defocusing nonlinear Schrödinger equation. The temperature in such a system is fully determined by the total number density and the number density of the condensate. A vortex ring is introduced into a condensate in a state of thermal equilibrium, and interacts with non-condensed particles. These interactions lead to a gradual decrease in the vortex line density, until the vortex ring completely disappears. We show that the square of the vortex line length changes linearly with time, and obtain the corresponding universal decay law. We relate this to mutual friction coefficients in the fundamental equation of vortex motion in superfluids.
4 pages, 3 figures
References in corpus (9)
- Simulations of Bose fields at finite temperature
- The Magnus force in superfluids and superconductors
- Condensation of classical nonlinear waves
- Evolution of Correlation Properties and Appearance of Broken Symmetry in the Process of Bose-Einstein Condensation
- Simulations of thermal Bose fields in the classical limit
- Dark soliton dynamics in Bose-Einstein condensates at finite temperature
- Incoherent matter-wave solitons
- Thermal dissipation in quantum turbulence
- Accidental suppression of Landau damping of the transverse breathing mode in elongated Bose-Einstein condensates
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