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Evidence for the Super Tonks-Girardeau Gas

Batchelor, Murray; Bortz, Michael; Guan, Xi-Wen; Oelkers, Norman


We provide evidence in support of a recent proposal by Astrakharchik et 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-Girardeau 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...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Journal of Statistical Mechanics: Theory and Experiment
DOI: 10.1088/1742-5468/2005/10/L10001


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