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Dissipative Synthesis of Mechanical Fock-Like States

1
Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK
2
Centre for Theoretical Atomic, Molecular, and Optical Physics, School of Mathematics and Physics, Queen's University, Belfast BT7 1NN, UK
3
Laboratory of Physics of Experimental Techniques and Applications, University of Medea, Medea 26000, Algeria
*
Author to whom correspondence should be addressed.
Presented at the 11th Italian Quantum Information Science conference (IQIS2018), Catania, Italy, 17--20 September 2018.
Proceedings 2019, 12(1), 25; https://doi.org/10.3390/proceedings2019012025
Published: 19 July 2019
(This article belongs to the Proceedings of 11th Italian Quantum Information Science conference (IQIS2018))
The observation of genuine quantum features of nano-mechanical motion is a key goal for both fundamental and applied quantum science. To this end, a promising approach is the stabilization of nonclassical features in the presence of dissipation, by means of the tunable coupling with a photonic environment. Here we present a scheme that combines dissipative squeezing with a mechanical nonlinearity to stabilize arbitrary approximations of (displaced) mechanical Fock state of any number. We consider an optomechanical system driven by three control lasers---at the cavity resonance and at the two mechanical sidebands---that couple the amplitude of the cavity field to the resonator's position and position squared. When the amplitude of the resonant drive is tuned to some specific values, the mechanical steady state is found in a (displaced) superposition of a finite number of Fock states, which for large enough squeezing achieves near-unit fidelity with a (displaced) Fock state of any desired number.
Keywords: quantum optomechanics; reservoir engineering; dissipative state preparation; non-Gaussian states quantum optomechanics; reservoir engineering; dissipative state preparation; non-Gaussian states
MDPI and ACS Style

Brunelli, M.; Houhou, O. Dissipative Synthesis of Mechanical Fock-Like States. Proceedings 2019, 12, 25.

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