Optomechanical circuits for nanomechanical continuous variable quantum   state processing
  We propose and analyze a nanomechanical architecture where light is used to perform linear quantum operations on a set of many vibrational modes. Suitable amplitude modulation of a single laser beam is shown to generate squeezing, entanglement, and state-transfer between modes that are selected according to their mechanical oscillation frequency. Current optomechanical devices based on photonic crystals may provide a platform for realizing this scheme. 
Michael Schmidt, Max Ludwig, Florian Marquardt
cond-mat.mes-hall quant-ph