Auf dem Weg zum Quanteninternet (IMAGE) University of Innsbruck Caption In einem nichtlinearen Kristall wird die Wellenlänge des Photons so verändert, dass es über herkömmliche Glasfaserleitungen gesendet werden kann. Credit IQOQI Innsbruck/Harald Ritsch 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 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.