Quantum Loop_Map_background_50% (IMAGE) DOE/Argonne National Laboratory Caption Scientists entangle light particles across the quantum loop in the Chicago suburbs. Animation shows the general path, which winds circuitously across a pair of 26-mile loops from Argonne National Laboratory to the I-355 Boughton Rd. Toll Plaza in Bolingbrook, IL. Credit (Image by Argonne National Laboratory.) Usage Restrictions none License Original 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.