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- Title
Some exact results for one-dimensional two-band SU(2) bosons.
- Authors
Zhang, Q.-L.; Gu, S.-J.; Li, Y.-Q.
- Abstract
A one-dimensional model for two-band SU(2) bosons with isospin exchange interaction is solved by means of the nested Bethe-ansatz method. The features of the ground state and low-lying excitation state are discussed explicitly by numerical and analytical method. The thermodynamics of the system is analyzed by means of the thermodynamic Bethe-ansatz method, and some physical quantities, such as magnetization, specific heat, etc. are obtained explicitly in some special cases.
- Subjects
BOSONS; PARTICLES (Nuclear physics); BETHE-ansatz technique; MATHEMATICAL physics; MANY-body problem; THERMODYNAMICS; MAGNETIZATION
- Publication
European Physical Journal B: Condensed Matter, 2004, Vol 40, Issue 2, p191
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/e2004-00257-y