In an earlier thread of mine, another physics forums member was nice enough to point out that there is an uncertainty relation between photon number and wave phase for light.(adsbygoogle = window.adsbygoogle || []).push({});

https://www.physicsforums.com/threads/is-there-a-frequency-eigenstate-for-light.727141/

Now I am wondering, where does this uncertainty relation come from? Was it discovered experimentally or can it be derived from other quantum mechanics axioms?

I am guessing that the answer lies in analysis of the quantum harmonic oscillator, but I am not sure.

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# Can one derive the photon number / phase uncertainty relation

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