Comments on Challenges for Quantum Gravity

Details Comments on Challenges for Quantum Gravity Comments on Challenges for Quantum Gravity

2003-06-25

arxiv.org/abs/gr-qc/0306113v1

Phys.Rev.Lett. 91 (2003) 179101

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1103/PhysRevLett.91.179101

We examine radiative corrections arising from Lorentz violating dimension
five operators presumably associated with Planck scale physics as recently
considered by Myers and Pospelov. We find that observational data result in
bounds on the dimensionless parameters of the order $10^{-15}$. These represent
the most stringent bounds on Lorentz violation to date.

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