Photo Chip (IMAGE) Leibniz University Hannover Caption The whole quantum light source fits on a chip smaller than a one-euro coin. The researchers reduced the size of the light source by a factor of more than 1,000 by using a novel "hybrid technology" that combines a laser made of indium phosphide and a filter made of silicon nitride on a single chip. The new light source is efficient and stable and can find applications to drive quantum computers or the quantum internet. Credit Institute of Photonics/LUH 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.