Is there a way to calculate the wavelength, frequency or energy (per photon) of the virtual photons that charges exchange to account for the Coulomb force? This is assuming that it's always the same wavelength, of course.
Virtual particles break conservation of energy in the classical sense. The maximum amount of extra energy can be [tex]\Delta E = \hbar / d[/tex], where [tex]d[/tex] is the distance between interacting particles. If you now count the wavelength of a photon of such energy, you will get exactly [tex]d[/tex].What does a wavelength even mean in this case?