Investigation on the characteristics of the hubbard model | Zendy

Su Gang | Zendy; Ge MoLin | Zendy

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Investigation on the characteristics of the hubbard model

Author(s) -

Su Gang,

Ge MoLin

Publication year - 1991

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221640222

Subject(s) - hubbard model , unitary state , pairing , superconductivity , physics , symmetry (geometry) , theoretical physics , simple (philosophy) , supersymmetry , quantum , quantum mechanics , mathematics , philosophy , geometry , political science , law , epistemology

It is shown that a simple Hubbard model obeys supersymmetry of quantum mechanics under proper conditions in the attractive and the repulsive cases. The internal SO 4 symmetry of that Hubbard model is found to be spontaneously broken. By unitary transformations superconductivity is investigated for a t — J model within the n ‐pairing framework, and some essential results are achieved for the superconducting state.

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