Light-bending tests of Lorentz invariance
- Resource Type
- Authors
- Quentin G. Bailey; Rhondale Tso
- Source
- Subject
- Physics
Nuclear and High Energy Physics
CPT symmetry
Four-momentum
FOS: Physical sciences
Test theories of special relativity
General Relativity and Quantum Cosmology (gr-qc)
Lorentz covariance
Velocity-addition formula
General Relativity and Quantum Cosmology
Lorentz factor
symbols.namesake
Classical mechanics
Theory of relativity
One-way speed of light
symbols
- Language
Classical light bending is investigated for weak gravitational fields in the presence of hypothetical local Lorentz violation. Using an effective field theory framework that describes general deviations from local Lorentz invariance, we derive a modified deflection angle for light passing near a massive body. The results include anisotropic effects not present for spherical sources in General Relativity as well as Weak Equivalence Principle violation. We develop an expression for the relative deflection of two distant stars that can be used to analyze data in past and future solar-system observations. The measurement sensitivities of such tests to coefficients for Lorentz violation are discussed.
Comment: 9 pages, 7 figures