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An SO(5) Symmetric Ladder | | D. Scalapino
; Shou-Cheng Zhang
; W. Hanke
; | | Date: |
13 Nov 1997 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | We construct an SO(5) symmetric electron model on a two-chain ladder with purely local interactions on a rung. The ground state phase diagram of this model is determined in the strong-coupling limit. The relationship between the spin-gap magnon mode of the spin-gap insulator and the $pi$ resonance mode of the d-wave pairing phase is discussed. We also present the exact ground state for an SO(5) superspin model. | | Source: | arXiv, cond-mat/9711117 | | Services: | Forum | Review | PDF | Favorites | |
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