Quantum Error Correction for Metrology
| Autor: | Kessler, Eric M., Lovchinsky, Igor, Sushkov, Alexander O., Lukin, Mikhail D. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 112, 150802 (2014) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.112.150802 |
| Popis: | 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. Comment: Revised manuscript; 8 pages, 2 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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