Light-Driven Loops (IMAGE) University of Chicago Caption This artist's rendition shows a laser light guiding the evolution of an electronic spin within an atomic-scale defect in diamond. These light-driven loops give rise to a geometric phase, a quantum logic operation that shows remarkable resilience to noise. Credit Peter Allen Usage Restrictions News organizations may use this image in connection with reports about the work of David Awschalom and his associates. 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.