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Title: Light-bending tests of Lorentz invariance

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.
Authors:
;  [1]
  1. Physics Department, Embry-Riddle Aeronautical University, 3700 Willow Creek Road, Prescott, Arizona 86301 (United States)
Publication Date:
OSTI Identifier:
21607958
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 84; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.84.085025; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANISOTROPY; EQUIVALENCE PRINCIPLE; GENERAL RELATIVITY THEORY; GRAVITATIONAL FIELDS; LORENTZ INVARIANCE; QUANTUM FIELD THEORY; SENSITIVITY; SOLAR SYSTEM; SPHERICAL CONFIGURATION; STARS CONFIGURATION; FIELD THEORIES; INVARIANCE PRINCIPLES; RELATIVITY THEORY