Engineering single-phonon number states of a mechanical oscillator via photon subtraction

Abstract

We introduce an optomechanical scheme for the probabilistic preparation of single-phonon Fock states of mechanical modes based on photo-subtraction. The quality of the produced mechanical state is confirmed by a number of indicators, including phonon statistics and conditional fidelity. We assess the detrimental effect of parameters such as the temperature of the mechanical system and address the feasibility of the scheme with state-of-the-art technology.

7 pages, 10 figures, RevTeX4; This paper supersedes arXiv:1511.07617; Accepted for publication in Phys. Rev. A

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• Sub-shot-noise sensitivity via superpositions of two deformed kitten states
• Macroscopic quantumness of optically conditioned mechanical systems