Nanoparticle caught between mirrors (IMAGE) University of Innsbruck Caption Nano particles trapped between mirrors might be a promising platform for quantum sensors. Credit IQOQI Innsbruck Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. 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.