Interference in the Quantum Ising Model  

作　　者：徐酉阳 粟多武 

机构地区：[1]Faculty of Science,Kunming University of Science and Technology [2]National Institute of Metrology

出　　处：《Communications in Theoretical Physics》2014年第1期51-55,共5页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant No.11355013;the Talent Introduction Foundation of Kunming University of Science and Technology under Grant No.2012017034

摘　　要：Using the measure of interference defined in this paper, we investigate the quantum phase transition of one-dimensional Ising chains. We find that thermal fluctuations affect the interference more strongly at the critical point. We also show that the derivative of the interference with respect to the coupling parameter, A, can be depressed by the thermal fluctuation. Finally, we find that this suppression is due to multi-particle excitations.

关 键 词：quantum interference quantum phase transition quantum Ising model 

分 类 号：O431.2[机械工程—光学工程]