dc.contributor.authorGuan, X. W.
dc.contributor.authorYin, X. G.
dc.contributor.authorFoerster, A.
dc.contributor.authorBatchelor, M. T.
dc.contributor.authorLee, C. H.
dc.contributor.authorLin, H. Q.
dc.identifier.citationGuan, X. W., Yin, X. G., Foerster, A., Batchelor, M. T., Lee, C. H., & Lin, H. Q. (2013). Wilson Ratio of Fermi Gases in One Dimension. Physical Review Letters, 111(13), 130401-130401-5.en_US
dc.description.abstractWe calculate the Wilson ratio of the one-dimensional Fermi gas with spin imbalance. The Wilson ratio of attractively interacting fermions is solely determined by the density stiffness and sound velocity of pairs and of excess fermions for the two-component Tomonaga-Luttinger liquid phase. The ratio exhibits anomalous enhancement at the two critical points due to the sudden change in the density of states. Despite a breakdown of the quasiparticle description in one dimension, two important features of the Fermi liquid are retained; namely, the specific heat is linearly proportional to temperature, whereas the susceptibility is independent of temperature. In contrast to the phenomenological Tomonaga-Luttinger liquid parameter, the Wilson ratio provides a powerful parameter for testing universal quantum liquids of interacting fermions in one, two, and three dimensions.en_US
dc.relation.ispartofseriesPhysical review lettersen_US
dc.rights© 2013 American Physical Society. This paper was published in Physical Review Letters and is made available as an electronic reprint (preprint) with permission of American Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.1103/PhysRevLett.111.130401]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectDRNTU::Engineering::Materials::Energy materials
dc.titleWilson ratio of fermi gases in one dimensionen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.description.versionPublished versionen_US

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