Flashing Circuit (IMAGE) University of California - San Diego Caption An circuit that uses excitons for computing flashes light as the particles decay to release photons. Credit Leonid Butov/UCSD 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.