Two Qubits With Long Coherence Time (IMAGE) DOE/Argonne National Laboratory Caption Artistic rendering shows two qubits with long coherence time and strong coupling. Credit (Image by Dafei Jin/Argonne National Laboratory and the University of Notre Dame.) Usage Restrictions Original content 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.