Coherent, mechanical control of a single electronic spin

  • Hong S
  • Grinolds M
  • Maletinsky P
 et al. 
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The ability to control and manipulate spins via electrical, magnetic and optical means has generated numerous applications in metrology and quantum information science in recent years. A promising alternative method for spin manipulation is the use of mechanical motion, where the oscillation of a mechanical resonator can be magnetically coupled to a spins magnetic dipole, which could enable scalable quantum information architectures9 and sensitive nanoscale magnetometry. To date, however, only population control of spins has been realized via classical motion of a mechanical resonator. Here, we demonstrate coherent mechanical control of an individual spin under ambient conditions using the driven motion of a mechanical resonator that is magnetically coupled to the electronic spin of a single nitrogen-vacancy (NV) color center in diamond. Coherent control of this hybrid mechanical/spin system is achieved by synchronizing pulsed spin-addressing protocols (involving optical and radiofrequency fields) to the motion of the driven oscillator, which allows coherent mechanical manipulation of both the population and phase of the spin via motion-induced Zeeman shifts of the NV spins energy. We demonstrate applications of this coherent mechanical spin-control technique to sensitive nanoscale scanning magnetometry.

Author-supplied keywords

  • Electron spin
  • hybrid mechanical-spin system
  • mechanical resonator
  • nanoscale magnetometry
  • nanoscale motion sensor
  • nitrogen-vacancy (NV) center

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  • Sungkun Hong

  • Michael S. Grinolds

  • Patrick Maletinsky

  • Ronald L. Walsworth

  • Mikhail D. Lukin

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