Energy relaxation in the Gross-Pitaevskii equation
Quantum Gases
2010-08-02 v1
Abstract
We introduce a dissipation term in the Gross-Pitaevskii equation that describes the stimulated relaxation of condensed bosons due to scattering with a different type of particles. This situation applies to Bose-Einstein condensates of quasi-particles in the solid state, such as magnons and excitons. Our model is compatible with the phenomenology of superfluidity: supercurrents are stable up to a critical speed and decay when they are faster.
Keywords
Cite
@article{arxiv.1007.5453,
title = {Energy relaxation in the Gross-Pitaevskii equation},
author = {Michiel Wouters and Vincenzo Savona},
journal= {arXiv preprint arXiv:1007.5453},
year = {2010}
}
Comments
4 pages, 3 figures