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Shields BJ, Unterreithmeier QP, de Leon NP, et al. Efficient readout of a single spin state in diamond via spin-to-charge conversion. Phys Rev Lett. 2015;114(13):136402doi: 10.1103/PhysRevLett.114.136402.
Shields, B. J., Unterreithmeier, Q. P., de Leon, N. P., Park, H., & Lukin, M. D. (2015). Efficient readout of a single spin state in diamond via spin-to-charge conversion. Physical review letters, 114(13), 136402. https://doi.org/10.1103/PhysRevLett.114.136402
Shields, B J, et al. "Efficient readout of a single spin state in diamond via spin-to-charge conversion." Physical review letters vol. 114,13 (2015): 136402. doi: https://doi.org/10.1103/PhysRevLett.114.136402
Shields BJ, Unterreithmeier QP, de Leon NP, Park H, Lukin MD. Efficient readout of a single spin state in diamond via spin-to-charge conversion. Phys Rev Lett. 2015 Apr 03;114(13):136402. doi: 10.1103/PhysRevLett.114.136402. Epub 2015 Mar 31. PMID: 25884129.
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Phys Rev Lett. 2015 Apr 03;114(13):136402. doi: 10.1103/PhysRevLett.114.136402. Epub 2015 Mar 31.

Efficient readout of a single spin state in diamond via spin-to-charge conversion.

Physical review letters

B J Shields, Q P Unterreithmeier, N P de Leon, H Park, M D Lukin

Affiliations

  1. Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.

PMID: 25884129 DOI: 10.1103/PhysRevLett.114.136402

Abstract

Efficient readout of individual electronic spins associated with atomlike impurities in the solid state is essential for applications in quantum information processing and quantum metrology. We demonstrate a new method for efficient spin readout of nitrogen-vacancy (NV) centers in diamond. The method is based on conversion of the electronic spin state of the NV to a charge-state distribution, followed by single-shot readout of the charge state. Conversion is achieved through a spin-dependent photoionization process in diamond at room temperature. Using NVs in nanofabricated diamond beams, we demonstrate that the resulting spin readout noise is within a factor of 3 of the spin projection noise level. Applications of this technique for nanoscale magnetic sensing are discussed.

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