Cosmology and the massive photon frequency shift in the Standard-Model Extension
Résumé
The total red shift z might be recast as a combination of the expansion red shift and a static shift due to the energy–momentum tensor non-conservation of a photon propagating through Electro-Magnetic (EM) fields. If massive, the photon may be described by the de Broglie–Proca (dBP) theory which satisfies the Lorentz(-Poincaré) Symmetry (LoSy) but not gauge-invariance. The latter is regained in the Standard-Model Extension (SME), associated with LoSy Violation (LSV) that naturally dresses photons of a mass. The non-conservation stems from the vacuum expectation value of the vector and tensor LSV fields. The final colour (red or blue) and size of the static shift depend on the orientations and strength of the LSV and EM multiple fields encountered along the path of the photon. Turning to cosmology, for a zero $\Omega _{\Lambda }$ energy density, the discrepancy between luminosity and red shift distances of SNeIa disappears thanks to the recasting of z. Massive photons induce an effective dark energy acting ‘optically’ but not dynamically.
Mots clés
Standard-Model Extension
Photons
Light Propagation
Cosmology
Supernovae
photon: massive
photon: mass
tensor: energy-momentum
energy: density
redshift
cosmological model
multiple field
dark energy
Lorentz
Poincare
symmetry: violation
new physics
electromagnetic field
photon: propagation
invariance: gauge
supernova
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