Abstract
By means of symplectic group Sp(2M), the symplectic symmetry of the Hubbard model and the η pairing are investigated to approach the eigenstates which have the largest spin multiplicities. The behavior of the off-diagonal long-range order of these eigenstates is examined by the criterion proposed by Yang and the energy diagram of the corresponding eigenvalues is elucidated by the η pairing mechanism. A basis set which is expressible in terms of η and ηa pairings is proposed.
Original language | English |
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Pages (from-to) | 1177-1191 |
Number of pages | 15 |
Journal | Journal of Mathematical Physics |
Volume | 36 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1995 |
Externally published | Yes |