Holographic Thermal Relaxation in Superfluid Turbulence
Abstract
Holographic duality provides a first-principles approach to investigate real time processes in quantum many-body systems, in particular at finite temperature and far-from-equilibrium. We use this approach to study the dynamical evolution of vortex number in a two-dimensional (2D) turbulent superfluid through numerically solving its gravity dual. We find that the temporal evolution of the vortex number can be well fit statistically by two-body decay due to the vortex pair annihilation featured relaxation process, thus confirm the previous suspicion based on the experimental data for turbulent superfluid in highly oblate Bose-Einstein condensates. Furthermore, the decay rate near the critical temperature is in good agreement with the recently developed effective theory of 2D superfluid turbulence.
Keywords
Cite
@article{arxiv.1412.8417,
title = {Holographic Thermal Relaxation in Superfluid Turbulence},
author = {Yiqiang Du and Chao Niu and Yu Tian and Hongbao Zhang},
journal= {arXiv preprint arXiv:1412.8417},
year = {2015}
}
Comments
14 pages, version to appear in JHEP. Movies available at http://people.ucas.ac.cn/~ytian?language=en#171556