Evidence for the super Tonks-Girardeau gas
Statistical Mechanics
2016-08-31 v2
Abstract
We provide evidence in support of a recent proposal by Astrakharchik at al. for the existence of a super Tonks-Girardeau gas-like state in the attractive interaction regime of quasi-one-dimensional Bose gases. We show that the super Tonks-Giradeau gas-like state corresponds to a highly-excited Bethe state in the integrable interacting Bose gas for which the bosons acquire hard-core behaviour. The gas-like state properties vary smoothly throughout a wide range from strong repulsion to strong attraction. There is an additional stable gas-like phase in this regime in which the bosons form two-body bound states behaving like hard-core bosons.
Cite
@article{arxiv.cond-mat/0508009,
title = {Evidence for the super Tonks-Girardeau gas},
author = {M. T. Batchelor and M. Bortz and X. W. Guan and N. Oelkers},
journal= {arXiv preprint arXiv:cond-mat/0508009},
year = {2016}
}
Comments
10 pages, 1 figure, 2 tables, additional text on the stability of the super T-G gas-like state