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## Main Question or Discussion Point

Essentially how I understand it is, (this is for the quantization of an EM field in vaccum)

-Fields become operators, a specific E operator will contain the number and multiple of rising and lowering operators needed to raise a vaccum state into the desired quantum state

-The electromagnetic field is a superposition of monochromatic states, corresponding to a superposition of monochromatic waves in the classical theory

However my question is, where do the uncertainties and probabilities come in? If I have a photon state in two frequencies, does that mean the field has a fifty-fifty chance of being in either frequency? I think this must be wrong because if it were true, then all fields would be monochromatic when measured.

-Fields become operators, a specific E operator will contain the number and multiple of rising and lowering operators needed to raise a vaccum state into the desired quantum state

-The electromagnetic field is a superposition of monochromatic states, corresponding to a superposition of monochromatic waves in the classical theory

However my question is, where do the uncertainties and probabilities come in? If I have a photon state in two frequencies, does that mean the field has a fifty-fifty chance of being in either frequency? I think this must be wrong because if it were true, then all fields would be monochromatic when measured.