College Physics
A new approach to study the parity operator
LI Ti-jun
Abstract
In the quantum mechanics,the parity operator P^ can be expressed by ∫d2zπ|z〉〈-z|、∫dq|q〉〈-q| and ∫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 the explicit form of the asymmetric projection operator is obtained.