Bounds on Vacuum-Orthogonal Lorentz and CPT Violation from Radiative Corrections

Abstract

Certain forms of Lorentz violation in the photon sector are difficult to bound directly, since they are "vacuum orthogonal," meaning they do not change the solutions of the equations of motion in vacuum. However, these very same terms have a unique tendency to contribute large radiative corrections to effects in other sectors. Making use of this, we set bounds on four previously unconstrained $d=5$ photon operators at the $10^{-25}$-$10^{-31}$ GeV${}^{-1}$ levels.

9 pages

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• Quantum Gravity at a Lifshitz Point
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• New CP-violation and preferred-frame tests with polarized electrons
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Cited by in corpus (2)

• External sources in a minimal and nonminimal CPT-odd Lorentz violating Maxwell electrodynamics
• Nonminimal planar electrodynamics modified by higher-derivative terms