外场中含缺陷的Ising量子链严格解  

THE EXACT SOLUTION OF ISING QUANTUM CHAIN WITH DEFECTS IN EXTERNAL FIELD

作　　者：李云 张德刚 

出　　处：《四川师范大学学报（自然科学版）》1994年第1期57-61,共5页Journal of Sichuan Normal University（Natural Science）

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

关 键 词：伊辛量子链 J-W变换 临界点 缺陷 

分 类 号：O414.2[理学—理论物理]