Universal four-component Fermi gas in one dimension
A four-component Fermi gas in one dimension with a short-range four-body interaction is shown to exhibit a one-dimensional analog of the BCS-BEC crossover. Its low-energy physics is governed by a Tomonaga-Luttinger liquid with three spin gaps. The spin gaps are exponentially small in the weak coupli...
Main Authors: | , |
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Other Authors: | , |
Format: | Article |
Language: | English |
Published: |
American Physical Society,
2011-02-01T14:58:26Z.
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Subjects: | |
Online Access: | Get fulltext |