- #1
daudaudaudau
- 302
- 0
In quantum mechanics, when is this true
[tex]
\langle\psi|AB|\psi\rangle=\langle\psi | A|\psi\rangle\langle\psi |B|\psi\rangle
[/tex]
? In probability theory, when the two variables are independent, the mean value of the product is the product of the mean values. What about QM?
[tex]
\langle\psi|AB|\psi\rangle=\langle\psi | A|\psi\rangle\langle\psi |B|\psi\rangle
[/tex]
? In probability theory, when the two variables are independent, the mean value of the product is the product of the mean values. What about QM?