Vacuum energy classical electrodynamics

A broken 3-space symmetry exists of a magnetic dipole [18] of a permanent magnet, well known in particle physics since 1957 but inexplicably not yet added into classical electrodynamics theory, wherein the broken symmetry of the magnetic dipole rigorously requires that the dipole continually absorb magnetic energy from the active vacuum in unusable form, and that the... 

J. P. Vigier et al., Classical electrodynamics without the Lorentz condition Extracting energy from the vacuum, Physica Scripta 61(5), 513-517 (2000). 

The principle behind this derivation is the gauge principle, and so is the same for all gauge groups. The equivalence (456) was first demonstrated on the 0(3) level [15], but evidently exists for all gauge group symmetries. The gauge principle in electrodynamics therefore leads to the energy and momentum of the photon and classical field. The 4-current J appears in both Eqs. (443) and (444) and is self-dual, a result that is echoed in the self-duality of the vacuum field equations ... 

The vacuum polarization is well known to have an analog in quantum electrodynamics [46], the photon self-energy. The latter has no classical analog on the U(l) level, but one exists on the 0(3) level, thus saving the correspondence principle. The classical vacuum polarization on the 0(3) level is transverse and vanishes when oo = 0. It is pure transverse because, as follows, the hypothetical E0) field is zero on the 0(3) level... 

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