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Title: Light-bending tests of Lorentz invariance

Abstract

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

Citation Formats

Tso, Rhondale, and Bailey, Quentin G. Light-bending tests of Lorentz invariance. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.84.085025.
Tso, Rhondale, & Bailey, Quentin G. Light-bending tests of Lorentz invariance. United States. doi:10.1103/PHYSREVD.84.085025.
Tso, Rhondale, and Bailey, Quentin G. 2011. "Light-bending tests of Lorentz invariance". United States. doi:10.1103/PHYSREVD.84.085025.
@article{osti_21607958,
title = {Light-bending tests of Lorentz invariance},
author = {Tso, Rhondale and Bailey, Quentin G.},
abstractNote = {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.},
doi = {10.1103/PHYSREVD.84.085025},
journal = {Physical Review. D, Particles Fields},
number = 8,
volume = 84,
place = {United States},
year = 2011,
month =
}
  • One of the fundamental assumptions of modern physics is that physical laws do not change with the velocity of the frame of reference in which experiments are done. Two recent atomic physics measurements by groups at the National Bureau of Standards, Boulder, Colorado, and the University of Washington provide the most stringent limits yet on the magnitude of any violations of this assumption, which physicists call local Lorentz invariance.
  • Antihydrogen atoms, produced near rest, trapped in a magnetic well, and cooled to the lowest possible temperature (kinetic energy) could provide an extremely powerful tool for the search of violations of CPT and Lorentz invarianz. We describe our plans to form a significant number of cold antihydrogen atoms for comparative precision spectroscopy of hydrogen and antihydrogen. {copyright} {ital 1999 American Institute of Physics.}
  • We discuss the consequences of Lorentz violation (as expressed within the Lorentz-violating extension of the standard model) for the hydrogen molecule, which represents a generic model of a molecular binding. Lorentz-violating shifts of electronic, vibrational and rotational energy levels, and of the internuclear distance are calculated. This offers the possibility of obtaining improved bounds on Lorentz invariance by experiments using molecules.