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Ground State Energy of 1D Attractive δ-Function Interacting Fermi Gas |
| WANG Ya-Hui1**, MA Zhong-Qi2 |
1Department of Physics, Shaanxi University of Technology, Hanzhong 723000
2Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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Abstract The ground state energy of one-dimensional two-component Fermi gas with the attractive δ-function interaction is fitted with a simple approximate function.
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Received: 30 December 2011
Published: 31 July 2012
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| PACS: |
05.30.Fk
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(Fermion systems and electron gas)
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03.75.Ss
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(Degenerate Fermi gases)
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03.75.Hh
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(Static properties of condensates; thermodynamical, statistical, and structural properties)
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Recently, the ''Gaudin–Yang model'' was widely used in literature. However, it was wrong because Gaudin did not have the key Yang–Baxter equation, and he took the wrong limit V approaching zero, instead of V approaching infinity, a key step.
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