Far from equilibrium dynamics of the Bose gas
Abstract
We study the approach to equilibrium of a Bose gas to a superfluid state. We point out that dynamic scaling, characteristic of far from equilibrium phase-ordering systems, should hold. We stress the importance of a non-dissipative Josephson precession term in driving the system to a new universality class. A model of coarsening in d=2, involving a quench between two temperatures below the equilibrium superfluid transition temperature (T_c), is exactly solved and demonstrates the relevance of the Josephson term. Numerical results on quenches from above T_c in d=2,3 provide evidence for the scaling picture postulated.
Cite
@article{arxiv.cond-mat/9705047,
title = {Far from equilibrium dynamics of the Bose gas},
author = {Kedar Damle and Satya N. Majumdar and Subir Sachdev},
journal= {arXiv preprint arXiv:cond-mat/9705047},
year = {2016}
}
Comments
To be published in "Pune Workshop (CMT-20) Proceedings"; Vol-12, Condensed Matter Theories; Nova Science Publishing. Ed: J. W. Clark