- #1

- 15

- 0

In the equation for photon energy: E

^{2}= p

^{2}c

^{2}+ m

^{2}c

^{4}

Is OAM counted in the p

^{2}c

^{2}part? Or does the above equation only apply to photons with normal momentum and there is another term for the angular momentum?

The normal relation for p seems to be p = kħ but isn't k just a vector?