交换算符

基本定義

$\hat {P_{12}}|a,b\rangle = |b,a\rangle$

${\hat P_{12}}^2|a,b\rangle = \hat P_{12}\alpha|b,a\rangle = \alpha\hat P_{12}|b,a\rangle = \alpha^2|a,b\rangle$

参考文献

• （英文）Sheldon, John S., A modern approach to quantum mechanics, University Science Books. 2000, ISBN 1891389130