110 citations · 605 across the 17 of their papers we have counts for
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Astrophysical Limits on Lorentz Violation for Pions
Brett Altschul
Pions, like nucleons, are composed primarily of up and down quarks and gluons. Constraints on spin-independent Lorentz violation in the proton, neutron, and pion sectors translate…
Astrophysical Bounds on the Photon Charge and Magnetic Moment
Brett Altschul
If the photon possessed an electric charge or a magnetic moment, light waves propagating through magnetic fields would acquire new quantum mechanical phases. For a charged photon,…
Finite Duration and Energy Effects in Lorentz-Violating Vacuum Cerenkov Radiation
Brett Altschul
Vacuum Cerenkov radiation is possible in certain Lorentz-violating quantum field theories, when very energetic charges move faster than the phase speed of light. In the presence of…
Cerenkov Radiation in a Lorentz-Violating and Birefringent Vacuum
Brett Altschul
We calculate the emission spectrum for vacuum Cerenkov radiation in Lorentz-violating extensions of electrodynamics. We develop an approach that works equally well if the presence…