Spin-Peierls系统低能行为研究  

A STUDY OF ENERGY BEHAVIOUROF SPIN-PEIERLS SYSTEM AT LOW TEMPERATURE

作　　者：蒋青[1] 

机构地区：[1]苏州大学物理系

出　　处：《哈尔滨师范大学自然科学学报》2001年第4期45-48,共4页Natural Science Journal of Harbin Normal University

摘　　要：本文利用标量场方法将哈密顿量对角化 ,研究了二聚化对形成能隙的影响 .By using the scalar field quantum mechanical approach to the Sine Gordon equation based on the JordanWigner transformation and bosonization technique,we studied the excitation energy gap at low temperature of the spin-1/2 Heisenberg chain with dimerization.Successive phase transition happened at T sp.

关 键 词：SPIN-PEIERLS系统 二聚化 准-维量子自旋系统 能隙 标量场方法 零温 有限温度 

分 类 号：O413.1[理学—理论物理]