Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-12-06
Nature Physics 7 (2011) 879
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
10.1038/NPHYS2070
A single Nitrogen Vacancy (NV) center hosted in a diamond nanocrystal is positioned at the extremity of a SiC nanowire. This novel hybrid system couples the degrees of freedom of two radically different systems, i.e. a nanomechanical oscillator and a single quantum object. The dynamics of the nano-resonator is probed through time resolved nanocrystal fluorescence and photon correlation measurements, conveying the influence of a mechanical degree of freedom given to 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.
Arcizet Olivier
Jacques Vincent
Poncharal Philippe
Seidelin Signe
Siria Alessandro
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