TY - JOUR KW - pfc AU - Cindy Regal AU - J. Teufel AU - Konrad Lehnert BT - Nature Physics DA - 2008-07 DO - 10.1038/nphys974 PY - 2008 SP - 555 EP - 560 T2 - Nature Physics TI - Measuring nanomechanical motion with a microwave cavity interferometer VL - 4 SN - 1745-2473 ER -