Journal
PHYSICAL REVIEW LETTERS
Volume 112, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.150802
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Funding
- NSF
- CUA
- HQOC
- ITAMP
- Defense Advanced Research Projects Agency (QuASAR Program)
- NDSEG
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969816] Funding Source: National Science Foundation
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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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