paths (IMAGE) Vienna University of Technology Caption Maxwell fish-eye lens with two atoms. A photon (green) is travelling between the two atoms along the curved light rays (white). Credit Oliver Diekmann (TU Wien) Usage Restrictions none License Original 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.