- #1
paweld
- 255
- 0
Let's define operator P:
[tex]
P \phi(\vec{r})=\phi(-\vec{r})
[/tex]
Does anyone know simple and elegant prove that [tex]P|lm\rangle = (-1)^l |lm\rangle[/tex]
([tex]|lm\rangle[/tex] is spherical harmonic).
[tex]
P \phi(\vec{r})=\phi(-\vec{r})
[/tex]
Does anyone know simple and elegant prove that [tex]P|lm\rangle = (-1)^l |lm\rangle[/tex]
([tex]|lm\rangle[/tex] is spherical harmonic).