Constraints on Relativity Violations from GammaRay Bursts
Abstract
Tiny violations of the Lorentz symmetry of relativity and the associated discrete CPT symmetry could emerge in a consistent theory of quantum gravity such as string theory. Recent evidence for linear polarization in gammaray bursts improves existing sensitivities to Lorentz and CPT violation involving photons by factors ranging from ten to a million.
 Publication:

Physical Review Letters
 Pub Date:
 May 2013
 DOI:
 10.1103/PhysRevLett.110.201601
 arXiv:
 arXiv:1301.5367
 Bibcode:
 2013PhRvL.110t1601K
 Keywords:

 11.30.Cp;
 11.30.Er;
 98.70.Rz;
 Lorentz and Poincare invariance;
 Charge conjugation parity time reversal and other discrete symmetries;
 gammaray sources;
 gammaray bursts;
 Astrophysics  High Energy Astrophysical Phenomena;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology;
 High Energy Physics  Theory
 EPrint:
 10 pages