Bulletin of the American Physical Society
Performance of an on-chip superconducting circulator for quantum microwave systems
Benjamin J. Chapman, Eric I. Rosenthal, Bradley A. Moores, Joseph Kerckhoff, John A. B. Mates, Gene C Hilton, Leila R. Vale, Joel N. Ullom, Kevin Lalumière, Alexandre Blais, Konrad W. Lehnert