Lorentz-Invariance Violation with Higher-Order Operators
Carlos M. Reyes, Luis F. Urrutia
TL;DR
This paper investigates how Lorentz-invariance violation with higher-order operators affects unitarity in a modified QED model, demonstrating that unitarity can be preserved at one-loop order using Lee-Wick prescriptions.
Contribution
It introduces a Lorentz-violating QED model with higher-order operators and shows unitarity preservation at one-loop order via Lee-Wick methods, extending previous indefinite metric theories.
Findings
Unitarity can be maintained at one-loop order in the Lorentz-violating model.
Lee-Wick prescription effectively preserves unitarity in the presence of higher-order operators.
The study extends indefinite metric theory techniques to Lorentz-violating quantum electrodynamics.
Abstract
In this work, in the light of the developments for indefinite metric theories made by Lee and Wick, we study perturbative unitarity in a Lorentz-invariance violating QED model with higher-order operators. We show that by following the Lee-Wick prescription it is possible to preserve unitarity in the model at one-loop order in the coupling.
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Taxonomy
TopicsNoncommutative and Quantum Gravity Theories · Black Holes and Theoretical Physics · Cosmology and Gravitation Theories