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Many-body properties of quasi-one dimensional Boson gas across a narrow CIR

Qi, Ran; Guan, Xi-Wen


We study strong interaction effects in a one-dimensional (1D) boson gas across a narrow confinement-induced resonance (CIR). In contrast to the zero-range potential, the 1D two-body interaction in the narrow CIR can be written as a polynomial of derivative δ-function interaction on many-body level. Using the asymptotic Bethe ansatz, we find that the low-energy physics of this many-body problem is described by the Tomonaga-Luttinger liquid where the Luttinger parameters are essentially modified...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Europhysics Letters
DOI: 10.1209/0295-5075/101/40002
Access Rights: Open Access


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