Abstract
We show that the recent measurements of linear polarization in gamma rays from GRB 930131 and GRB 960924 constrain certain types of relativity violations in photons to less than parts in , representing an improvement in sensitivity by a factor of 100 000.
- Received 13 June 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.140401
©2006 American Physical Society