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The photon is the quantum of the electromagnetic four-potential, and therefore the massless bosonic particle associated with the electromagnetic force, commonly also called the "particle of light". Use this tag for questions about the quantum-mechanical understanding of light and/or electromagnetic interactions.

4 votes
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Is $\phi_n =\left\langle \vec r | n \right\rangle $ the photon wave function?

Since we use Fock states $| n \rangle$ to represent the state of a quantized monochromatic field with $n$ photons then I guess that if I project this onto the position basis ($\left\langle \vec r | n \ …
Pablo Palacios's user avatar
0 votes
2 answers
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Can a two-levels photon pair be created either entangled or not entangled? [closed]

Something like this As it seems like a SPDC device, I suspect is a sort of entangled photons device (also because of the Coincidence Detector). … if not, Can I use entangled photons as a two-particle system with an arbitrary quantum state? …
Pablo Palacios's user avatar