TY - RPRT TI - Quantum two-level systems in Josephson junctions as naturally formed qubits. AU - A M Zagoskin AU - S Ashhab AU - J R Johansson AU - Franco Nori PY - 2006 DO - 10.1103/physrevlett.97.077001 UR - https://pubmed.ncbi.nlm.nih.gov/17026265/ ID - 17026265 ER -