Certified Entangled (image) University of Innsbruck Caption A new method allows for reliable statements about the entanglement in a system. Credit University of Innsbruck / Harald Ritsch Usage Restrictions Use only in reports on research done at the University of Innsbruck. 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.