摘要
本文用Ｊｏｒｄａｎ－ｗｉｇｎｅｒ变换和Ｂｏｇｏｌｉｕｂｏｖ变换在体临界点邻域严格求解了外场中含缺陷的Ｉｓｉｎｇ量子链低能激发谱，所得能谱具有等间距塔状结构。
The Ising quantum chain with defeets in a transverse field is solved exactly by using the Jordan-Wigner transformation and Bogoliubov transformation at the bulk critical point.The low-energy spectrum of this model is shown to have a tower structure. This means that conformal invarance is preserved under the circumstance
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
1994年第1期57-61,共5页
Journal of Sichuan Normal University（Natural Science）
关键词
伊辛量子链
J-W变换
临界点
缺陷
Jordan-Wigner transformation,Bogoliubov transformation,conformal invariance
