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.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
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
关键词
相互作用
共形场论
微扰论
量子链
perturbation calculation, NNN niteraction, conformal field theory, critical phenomenon
