Rooftop View of Trailers (IMAGE) University of Waterloo Caption Trailers parked more than 600m from the researchers lab on the University of Waterloo campus were used to separate three photons, proving the theory of quantum nonlocality. Credit University of Waterloo Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.