Quantum Entanglement Source (IMAGE) Optica Caption Researchers developed a miniaturized source of quantum entanglement that measures only 20 by 10 centimeters. Credit Centre for Quantum Technologies, National University of Singapore 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.