TY - JOUR KW - pfc AU - M. Castellanos-Beltran AU - Konrad Lehnert BT - Applied Physics Letters DA - 2007-08 DO - 10.1063/1.2773988 PY - 2007 EP - 083509 T2 - Applied Physics Letters TI - Widely tunable parametric amplifier based on a superconducting quantum interference device array resonator VL - 91 SN - 00036951 ER -