次近邻相互作用模型的场论微扰计算及临界现象  

Perturbation Calculation of NNN Interaction Model and its Critical Phenomenon

作　　者：张海燕 

出　　处：《上海交通大学学报》1994年第3期117-123,共7页Journal of Shanghai Jiaotong University

基　　金：国家教委科研基金

摘　　要：本文用微扰计算方法研究了具有次近邻相互作用的一维量子链，得到与λ的线性关系；并对此模型进行了场论推导，应用共形场论结果给出关系的理论解释。In this paper the NNN interaction model is studied by using perturbation calculation and it is found that there exists linear relationship between and λ. A simple derivation of the field theory of the model is also made and the calculation results are explained with conformal field theory.

关 键 词：相互作用 共形场论 微扰论 量子链 

分 类 号：O41[理学—理论物理]