Cosmological Behavior of a Parity and Charge-Parity Violating Varying Alpha Theory
arXiv:1005.5104 · doi:10.1103/PhysRevD.83.083516
Abstract
In this report we construct a phenomenological model in which the time variation of the fine structure constant, , is induced by a parity and charge-parity (PCP) violating interaction. Such a PCP violation in the photon sector has a distinct physical origin from that in the conventional models of this kind. We calculate the cosmological birefringence so induced in our model and show that it in turn produces a new non-vanishing multipole moment correlation between the temperature and the polarization anisotropies in the CMB spectrum. We have also calculated the amount of optical rotation due to a strong background magnetic field and the effect of our new PCP violating term on the variation of during the cosmic evolution. We found that only in the radiation dominated era can the contribution of the new PCP violating term to the variation of be non-vanishing.
arXiv comment20 pages, No figure, Matched with the published version
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