Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit

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Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit

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Title: Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit
Author: Kolkowitz, Shimon Jacob; Bleszynski Jayich, A. C.; Unterreithmeier, Quirin; Bennett, S. D.; Rabl, P.; Harris, J. G. E.; Lukin, Mikhail D.

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Citation: Kolkowitz, S., A. C. Bleszynski Jayich, Q. P. Unterreithmeier, S. D. Bennett, P. Rabl, J. G. E. Harris, and M. D. Lukin. 2012. “Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit.” Science 335 (6076) (February 23): 1603–1606. doi:10.1126/science.1216821.
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Abstract: Mechanical systems can be influenced by a wide variety of small forces, ranging from gravitational to optical, electrical, and magnetic. When mechanical resonators are scaled down to nanometer-scale dimensions, these forces can be harnessed to enable coupling to individual quantum systems. We demonstrate that the coherent evolution of a single electronic spin associated with a nitrogen vacancy center in diamond can be coupled to the motion of a magnetized mechanical resonator. Coherent manipulation of the spin is used to sense driven and Brownian motion of the resonator under ambient conditions with a precision below 6 picometers. With future improvements, this technique could be used to detect mechanical zero-point fluctuations, realize strong spin-phonon coupling at a single quantum level, and implement quantum spin transducers.
Published Version: doi:10.1126/science.1216821
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:33717986
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