Quantum gray solitons in confining potentials
Quantum Gases
2012-04-23 v3 Mathematical Physics
math.MP
Quantum Physics
Abstract
We define and study hole-like excitations (the Lieb II mode) in a weakly interacting Bose liquid subject to external confinement. These excitations are obtained by semiclassical quantization of gray solitons propagating on top of a Thomas-Fermi background. Radiation of phonons by an accelerated gray soliton leads to a finite life-time for the trapped Lieb II mode. It is shown that, for a large number of trapped atoms, most of the Lieb II levels can be experimentally resolved.
Keywords
Cite
@article{arxiv.1109.4310,
title = {Quantum gray solitons in confining potentials},
author = {Dominic C. Wadkin-Snaith and Dimitri M. Gangardt},
journal= {arXiv preprint arXiv:1109.4310},
year = {2012}
}
Comments
5 pages, 2 figures