Algebraic structure and squeezed state solutions of the XYZ antiferromagnetic Heisenberg model in an external magnetic field
Shuo Jin, Bing-Hao Xie, (1)北京航空航天大学物理系，北京 100083; (2)北京信息工程学院，北京 100101
On the linear spin-wave frame, the XYZ antiferromagnetic Heisenberg model in an external magnetic field is proposed to have an so(3,2) algebraic structure. The energy eigenvalues and the squeezed state solutions are obtained by making use of algebraic diagonalization. Some properties of the energy eigenvalues are investigated. The connection with the model of the special two-mode harmonic oscillators is also established.
Acta Physica Sinica•Jan 1, 2006•2 citations