sigfpe is too simplistic and conflates a few different aspects of atomic spectra, photons and EM fields. The sci.physics reference for this is Baez & Weiss: h

sigfpe is too simplistic and conflates a few different aspects of atomic spectra, photons and EM fields. The sci.physics reference for this is Baez & Weiss: http://math.ucr.edu/home/baez/photon/schmoton.htm http://math.ucr.edu/home/baez/photon/schmoton.htm If you have read that, you know the number of photons is just another quantum number, with aspects of uncertainty, superposition and entanglement, so this will not be a surprise: https://phys.org/news/2019-08-photon-number-quantum-superposition.html https://phys.org/news/2019-08-photon-number-quantum-superpos...