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arXiv · 1310.3260

Quantum Error Correction for Metrology

Eric M. Kessler·Igor Lovchinsky·Alexander O. Sushkov·Mikhail D. Lukin
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Abstract

We propose and analyze a new approach based on quantum error correction (QEC) to improve quantum metrology in the presence of noise. We identify the conditions under which QEC allows one to improve the signal-to-noise ratio in quantum-limited measurements, and we demonstrate that it enables, in certain situations, Heisenberg-limited sensitivity. We discuss specific applications to nanoscale sensing using nitrogen-vacancy centers in diamond in which QEC can significantly improve the measurement sensitivity and bandwidth under realistic experimental conditions.

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Eric M. Kessler, Igor Lovchinsky, Alexander O. Sushkov, Mikhail D. Lukin. 2014-01-16. Quantum Error Correction for Metrology. https://doi.org/10.1103/physrevlett.112.150802

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