Just a quick question on photon orbital angular momentum.(adsbygoogle = window.adsbygoogle || []).push({});

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?

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# Orbital Angular Momentum and Photon Energy

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