Protecting Quantum Information via Destructive Interference of Correlated Noise
Abstract
Decoherence and imperfect control are crucial challenges for quantum technologies. Common protection strategies rely on noise temporal autocorrelation, which is not optimal if other correlations are present. We develop and demonstrate experimentally a strategy that uses the cross-correlation of two noise sources. Utilizing destructive interference of cross-correlated noise extends the coherence time tenfold, improves control fidelity, and surpasses the state-of-the-art sensitivity for high frequency quantum sensing, significantly expanding the applicability of noise protection strategies.
Copyright and License
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Acknowledgement
We thank Matthew Markham (Element 6) for the fabrication of the diamond solid immersion lens and Christian Osterkamp (Ulm University) for the growth of the isotopically enriched NV doped layer of CVD diamond. Q. C. is thankful to Raul Gonzalez Cornejo and Gerhard Wolff for experimental help and to Yu Liu for helpful discussions. A. S., A. R., and G. G. thank Nati Aharon for fruitful discussions. A. S. gratefully acknowledges the support of the Clore Israel Foundation Scholars Programme, the Israeli Council for Higher Education, and the Milner Foundation. This work was funded by the German Federal Ministry of Research (BMBF) by future cluster QSENS and projects DE-Brill (No. 13N16207), SPINNING, DIAQNOS (No. 13N16463), quNV2.0 (No. 13N16707), QR. X and Quamapolis (No. 13N15375), DLR via project QUASIMODO (No. 50WM2170), Deutsche Forschungsgemeinschaft (DFG) via Projects No. 386028944, No. 445243414, and No. 387073854, and Excellence Cluster POLiS European Union’s HORIZON Europe program via projects QuMicro (No. 101046911), SPINUS (No. 101135699), CQuENS (No. 101135359), QCIRCLE (No. 101059999) and FLORIN (No. 101086142), European Research Council (ERC) via Synergy grant HyperQ (No. 856432) and Carl-Zeiss-Stiftung via the Center of Integrated Quantum Science and technology (IQST) and project Utrasens-Vir. A. R. acknowledges the support of European Research Council grant QRES, Project No. 770929, Quantera grant MfQDS, Israel Science Foundation and the Schwartzmann university chair. J. M. acknowledges the National Natural Science Foundation of China (Grants No. 12161141011).
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Additional details
- ISSN
- 1079-7114
- Clore Israel Foundation
- Council for Higher Education
- Milner Foundation
- Federal Ministry of Education and Research
- 13N16207
- Federal Ministry of Education and Research
- 13N16463
- Federal Ministry of Education and Research
- 13N16707
- Federal Ministry of Education and Research
- 13N15375
- Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
- 50WM2170
- Deutsche Forschungsgemeinschaft
- 386028944
- Deutsche Forschungsgemeinschaft
- 445243414
- Deutsche Forschungsgemeinschaft
- 387073854
- European Research Council
- 101046911
- European Research Council
- 101135359
- European Research Council
- 101135699
- European Research Council
- 101059999
- European Research Council
- 101086142
- European Research Council
- 856432
- Carl Zeiss Foundation
- European Research Council
- 770929
- Center for Integrated Quantum Science and Technology
- Israel Science Foundation
- Hebrew University of Jerusalem
- National Natural Science Foundation of China
- 12161141011
- Caltech groups
- AWS Center for Quantum Computing