Nonlinear nanomechanical resonators for quantum optoelectromechanics
Abstract
We present a scheme for tuning and controlling nanomechanical resonators by subjecting them to electrostatic gradient fields, provided by nearby tip electrodes. We show that this approach enables access to a regime of optomechanics where the intrinsic nonlinearity of the nanoresonator can be explored. In this regime, one or several laser-driven cavity modes coupled to the nanoresonator and suitably adjusted gradient fields make it possible to control the motional state of the nanoresonator at the single-phonon level. Some applications of this platform have been presented previously [S. Rips, M. Kiffner, I. Wilson-Rae, and M. J. Hartmann, New J. Phys. 14, 023042 (2012), 10.1088/1367-2630/14/2/023042; S. Rips and M. J. Hartmann, Phys. Rev. Lett. 110, 120503 (2013), 10.1103/PhysRevLett.110.120503]. Here we provide a detailed description of the corresponding setup and its optomechanical coupling mechanisms together with an in-depth analysis of possible sources of damping or decoherence and a discussion of the readout of the nanoresonator state.
- Publication:
-
Physical Review A
- Pub Date:
- January 2014
- DOI:
- 10.1103/PhysRevA.89.013854
- Bibcode:
- 2014PhRvA..89a3854R
- Keywords:
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- 42.50.Wk;
- 85.85.+j;
- 42.50.Dv;
- 03.65.Ta;
- Mechanical effects of light on material media microstructures and particles;
- Micro- and nano-electromechanical systems and devices;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Foundations of quantum mechanics;
- measurement theory