Integrable magnetic model of two chains coupled by four-body interactions

Authors
Muramoto, N Takahashi, M
Citation
N. Muramoto et M. Takahashi, Integrable magnetic model of two chains coupled by four-body interactions, J PHYS JPN, 68(6), 1999, pp. 2098-2104
Citations number
11
Categorie Soggetti
Physics
Journal title
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
ISSN journal
00319015 → ACNP
Volume
68
Issue
6
Year of publication
1999
Pages
2098 - 2104
Database
ISI
SICI code
0031-9015(199906)68:6<2098:IMMOTC>2.0.ZU;2-C
Abstract
An exact solution for an XXZ chain with four-body interactions is obtained and its phase diagram is determined. The model can be reduced to two chains coupled by four-body interactions, and it is shown that the ground state o f the two-chain model is magnetized in part, Furthermore, a twisted four-bo dy correlation function of the anti-ferromagnetic Heisenberg chain is obtai ned.