%0 Journal Article %T A single nitrogen-vacancy defect coupled to a nanomechanical oscillator %A Arcizet, O. %A Jacques, V. %A Siria, A. %A Poncharal, P. %A Vincent, P. %A Seidelin, S. %J Nature Physics %D 2011 %V 7 %N 11 %F Arcizet_etal2011 %O exported from refbase (https://db.rplab.ru/refbase/show.php?record=819), last updated on Sat, 12 May 2012 14:49:35 -0500 %X We position a single nitrogen-vacancy (NV) centre hosted in a diamond nanocrystal at the extremity of a SiC nanowire. This novel hybrid system couples the degrees of freedom of two radically different systems: a nanomechanical oscillator and a single quantum object. We probe the dynamics of the nano-resonator through time-resolved nanocrystal fluorescence and photon-correlation measurements, conveying the influence of a mechanical degree of freedom on a non-classical photon emitter. Moreover, by immersing the system in a strong magnetic field gradient, we induce a magnetic coupling between the nanomechanical oscillator and the NV electronic spin, providing nanomotion readout through a single electronic spin. Spin-dependent forces inherent to this coupling scheme are essential in a variety of active cooling and entanglement protocols used in atomic physics, and should now be within the reach of nanomechanical hybrid systems. %K fromIPMRAS %P 879-883