Argonne Scientists (IMAGE) DOE/Argonne National Laboratory Caption Argonne scientists, (left to right) Sean Sullivan, Gary Wolfowicz, Joseph Heremans and Alan Dibos, worked on the quantum loop project and demonstrated the operation of the testbed by generating, transmitting, and detecting optical pulses through one and then both fiber loops. Credit Argonne National Laborator Usage Restrictions None 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.