摘要
<Abstract>The spectra of four-point Hubbard model with oneand two holes are given. The analytic results are com-pared with those of t-J and t-t'-J models. For one-holecase there exists a phase transition in the groundstate.The transition point is at t/U = 0. 054.
出处
《河北旅游职业学院学报》
1995年第1期10-13,共4页
Journal of Hebei Tourism College
基金
1Teh project supported by National Natural Science Foundation of China
