The ILL (IMAGE) Institut Laue-Langevin Caption This is the Institut Laue-Langevin neutron source where the Quantum Cheshire Cat was created. Credit ILL 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.