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Analytic Thermodynamics and Thermometry of Gaudin-Yang Fermi Gases

Zhao, Erhai; Guan, Xi-Wen; Liu, Vincent; Batchelor, Murray; Oshikawa, Masaki

Description

We study the thermodynamics of a one-dimensional attractive Fermi gas (the Gaudin-Yang model) with spin imbalance. The exact solution has been known from the thermodynamic Bethe ansatz for decades, but it involves an infinite number of coupled nonlinear integral equations whose physics is difficult to extract. Here the solution is analytically reduced to a simple, powerful set of four algebraic equations. The simplified equations become universal and exact in the experimental regime of strong...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/17354
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.103.140404

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