Authors with lasers (IMAGE) Harvard University Caption Prof. Mikhail Lukin (left) and Giulia Semeghini, lead researcher, observe a state of matter predicted and hunted for 50 years but never previously observed. Inside the LISE building they study Quantum spin liquids using lasers. Kris Snibbe/Harvard Staff Photographer Credit Kris Snibbe/Harvard Staff Photographer Usage Restrictions Credit must be given to the creator. License CC BY 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.