Year: 2001
Type: article
Abstract: We obtain observational upper bounds on a class of quantum gravity related birefringence effects, by analyzing the presence of linear polarization in the optical and ultraviolet spectrum of some distant sources. In the notation of Gambini and Pullin we find $\ensuremath{\chi}<5\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}.$
Authors: Reinaldo Gleiser, Carlos Kozameh
Institution: Universidad Nacional de Córdoba
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2115984402