Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-10-27
Phys.Rev.D80:125010,2009
Physics
High Energy Physics
High Energy Physics - Theory
14 pages
Scientific paper
10.1103/PhysRevD.80.125010
A time-varying fine structure constant alpha(t) could give rise to Lorentz- and CPT-violating changes to the vacuum polarization, which would affect photon propagation. Such changes to the effective action can violate gauge invariance, but they are otherwise permitted. However, in the minimal theory of varying alpha, no such terms are generated at lowest order. At second order, vacuum polarization can generate an instability--a Lorentz-violating analogue of a negative photon mass squared -m^2 proportional to alpha [(d alpha/dt) / alpha]^2 log (Lambda^2), where Lambda is the cutoff for the low-energy effective theory.
Altschul Brett
Ferrero Alejandro
No associations
LandOfFree
Radiatively Induced Lorentz and Gauge Symmetry Violation in Electrodynamics with Varying alpha does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radiatively Induced Lorentz and Gauge Symmetry Violation in Electrodynamics with Varying alpha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiatively Induced Lorentz and Gauge Symmetry Violation in Electrodynamics with Varying alpha will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-483743