Quantum Nondemolition Squeezing of a Nanomechanical Resonator

R. Ruskov, K. Schwab, A.N. Korotkov
2005 IEEE transactions on nanotechnology  
We show that the nanoresonator position can be squeezed significantly below the ground state level by measuring the nanoresonator with a quantum point contact or a single-electron transistor and applying a periodic voltage across the detector. The mechanism of squeezing is basically a generalization of quantum nondemolition measurement of an oscillator to the case of continuous measurement by a weakly coupled detector. The quantum feedback is necessary to prevent the "heating" due to
more » ... " due to measurement back-action. We also discuss a procedure of experimental verification of the squeezed state.
doi:10.1109/tnano.2004.840171 fatcat:cicvxwmx7redlni3iv6r56kf2a