(As of 2020, February, the 19th, 12:23, I have decided to use a different method than the one originally proposed. The method itself answers the question)
Imagine a spell an effect of utterdarkness. Such spell effect envelops an area which then acts as place where electromagnetic radiation (EMR for shot) coming from outside is nullified, and none can be generated inside. Imagine an effect of utterdarkness. Such effect envelops an area which then acts as a place where electromagnetic radiation (EMR for shot) coming from outside the area is reflected back as gravitational waves, and EMR generated inside the area radiates out also as gravitational waves (first of all, can this be done without breaking conservation of energy?)
To be scientifically accurate, must this effect interfere with things like the cohesion of atoms? Electromagnetism binds electrons to the nucleus of an atom, but is it considered EMR? The carrier of the force is the photon, same thing that carries EMR through space as waves.
1) I have decided that virtual photons and radiant photons are not the same; virtual photons being purely mathematical entities, radiant photons being massless and observable
Is there a way to decouple EMR as pure radiant energy (infrared, x-rays, light, etc) from quantum level electromagnetism without breaking reality? I would also like to prevent ionic and molecular bonds from breaking.
There is enough evidence (in the form of papers written by scientists who disagree with the Standard Model and QFT) to support that such a distinction can be made and may even someday become part of actual Physics
If there is a way to stop EMR while radiant energy without the side-effects I've mentioned, what would happen to magnets, electric currents, and things like that?
I have decided that nothing will happen, to any aspect of the electromagnetic field other than the emission of radiating photons
Edit: I forgot to ask: how would such region nullify EMR coming from outside without destroying energy? Could it convert it to gravitational waves (the effects would be unnoticeable I think, wouldn't they?)
Edit2: Heat transfer via infrared radiation would surely be null inside the area, would heat transfer from electrons also cease? And if so, how would that affect chemical reactions? Would oxidation be possible (and thus, combustion?)
Edit3: I have decided that EMR coming out from the area is converted into gravitational waves and reflected back, and EMR generated inside the area is also converted into gravitation waves and radiates out. I imagine the effects of the gravitational waves would not even be measurable, unless by an magical device since gravity is a much weaker force. I have a doubt if conservation of energy would be maintained by such energy transformation. I have since then edited the question above.
I have decided that, by some neat trick using the electroweak interaction that our current understanding of Physics cannot explain, the area of space where the effect takes place will turn all radiating photons into neutrinos (one or more, I don't know). I have also decided that virtual photons are "not real" (duh) in the sense that they should not be treated in the same way by this effect, or, even if they were "real," the effect would simply not be able to affect them because of the briefness of the "existence" of virtual particles. The inside of the region would generally be cooler than an area outside of it, because thermal radiation would produce neutrinos instead of infrared photons, but besides that I believe everything else would remain the same. Any suggestions or objections?