SO(5) SYMMETRICAL LADDER

Authors
SCALAPINO D ZHANG SC HANKE W
Citation
D. Scalapino et al., SO(5) SYMMETRICAL LADDER, Physical review. B, Condensed matter, 58(1), 1998, pp. 443-452
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
58
Issue
1
Year of publication
1998
Pages
443 - 452
Database
ISI
SICI code
0163-1829(1998)58:1<443:>2.0.ZU;2-S
Abstract
We construct an SO(5) symmetric electron model on a two-chain ladder w ith purely local interactions on a rung. The ground state phase diagra m of this model is determined in the strong-coupling limit. The relati onship 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 als o present the exact ground state for an SO(5) superspin model. [S0163- 1829(98)05022-X].