研究宇称算符的一种新方法  

A new approach to study the parity operator

作　　者：王帅[1] 李体俊[1] 

机构地区：[1]菏泽学院物理系,山东菏泽274015

出　　处：《大学物理》2009年第3期1-3,共3页College Physics

摘　　要：在量子力学中,宇称算符P^的3种表象积分分别表示为∫dπ2z|z〉〈-z|、∫dq|q〉〈-q|和∫dp|p〉〈-p|.借助Dirac符号法和量子力学表象的完备性,找到了一种非常新颖的方法,给出了宇称算符的积分显式.In the quantum mechanics, the parity operator P^ can be expressed by ∫d^2z/π｜z〉〈-z｜、∫dq｜q〉〈-q｜和∫dp｜p〉〈-p｜ By using the Dirac symbol and the completeness of quantum representations, an alternative method is proposed. By this method, these integrations for asymmetric projection operator are realized, and then explicit form of the asymmetric projection operator is obtained

关 键 词：宇称算符 量子力学表象 Dirac符号法 

分 类 号：O413.1[理学—理论物理]