This is the energy oscillating in the photon emitted by the dipole as the dipole is relaxed/released.
In a similar way,
and
These are photons associated with each of the particle dipole. What happened to the complementary set of photons, where instead of the negative particles spinning, the positive particles are spinning?
Maybe in photoelectric effect (all dipole types) there is a small amount of energy (because of a low positive particle spin) being carried away by the corresponding complementary photon.
