Thermal dissipation in quantum turbulence
无序系统与神经网络
2009-11-11 v3 统计力学
摘要
The microscopic mechanism of thermal dissipation in quantum turbulence has been numerically studied by solving the coupled system involving the Gross-Pitaevskii equation and the Bogoliubov-de Gennes equation. At low temperatures, the obtained dissipation does not work at scales greater than the vortex core size. However, as the temperature increases, dissipation works at large scales and it affects the vortex dynamics. We successfully obtained the mutual friction coefficients of the vortex dynamics as functions of temperature, which can be applied to the vortex dynamics in dilute Bose-Einstein condensates.
引用
@article{arxiv.cond-mat/0607434,
title = {Thermal dissipation in quantum turbulence},
author = {Michikazu Kobayashi and Makoto Tsubota},
journal= {arXiv preprint arXiv:cond-mat/0607434},
year = {2009}
}
备注
4 pages, 6 figures, submitted to APS