Experimental quantum error correction with high fidelity
Name
Zhang-2011-Experimental quantum error correction with high fidelity.pdf
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Author(s)
Zhang, Jingfu
Moussa, Osama
Laflamme, Raymond
Gangloff, Dorian
Date Issued
September 2011
Journal
Physical Review A
Publisher
American Physical Society (APS)
Citation
Zhang, Jingfu et al. “Experimental Quantum Error Correction with High Fidelity.” Physical Review A 84.3 (2011): n. pag. Web. 16 Feb. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
More than ten years ago a first step toward quantum error correction (QEC) was implemented [ Phys. Rev. Lett. 81 2152 (1998)]. The work showed there was sufficient control in nuclear magnetic resonance to implement QEC, and demonstrated that the error rate changed from ε to ∼ε2. In the current work we reproduce a similar experiment using control techniques that have been since developed, such as the pulses generated by gradient ascent pulse engineering algorithm. We show that the fidelity of the QEC gate sequence and the comparative advantage of QEC are appreciably improved. This advantage is maintained despite the errors introduced by the additional operations needed to protect the quantum states.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.84.034303
