Optomechanics with microwave light

Recently, superconducting circuits resonant at microwave frequencies have revolutionized the measurement of astrophysical detectors [1] and superconducting qubits [2]. In this talk, I will describe how we extend this technique to measuring and manipulating nanomechanical oscillators. By strongly coupling the motion of a nanomechanical oscillator to the resonance of the microwave circuit we create structures where the dominant dissipative force acting on the oscillator is the radiation pressure of microwave ``light'' [3]. These devices are ultrasensitive force detectors and they allow us to cool the oscillator towards its motional ground state. \\[4pt] [1] P. K. Day \emph{et al}., Nature \textbf{425}, 817 (2003).\\[0pt] [2] A. Wallraff \emph{et al}., Nature \textbf{431}, 162 (2004).\\[0pt] [3] J. D. Teufel, J. W. Harlow, C. A. Regal and K.~W. Lehnert, Phys. Rev. Lett., \textbf{101}, 197203 (2008).