Quantum nondemolition measurement of mechanical squeezed state beyond the 3 dB limit

  1. C. U. Lei,
  2. A. J. Weinstein,
  3. J. Suh,
  4. E. E. Wollman,
  5. A. Kronwald,
  6. F. Marquardt,
  7. A. A. Clerk,
  8. and K. C. Schwab
We use a reservoir engineering technique based on two-tone driving to generate and stabilize a quantum squeezed state of a micron-scale mechanical oscillator in a microwave optomechanical