Demonstration of a quantum error correction for enhanced sensitivity of photonic measurements

L. Cohen, Y. Pilnyak, D. Istrati, A. Retzker, H. S. Eisenberg

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


The sensitivity of classical and quantum sensing is impaired in a noisy environment. Thus, one of the main challenges facing sensing protocols is to reduce the noise while preserving the signal. State-of-the-art quantum sensing protocols that rely on dynamical decoupling achieve this goal under the restriction of long noise correlation times. We implement a proof-of-principle experiment of a protocol to recover sensitivity by using an error correction for photonic systems that does not have this restriction. The protocol uses a protected entangled qubit to correct a single error. Our results show a recovery of about 87% of the sensitivity, independent of the noise probability.

Original languageAmerican English
Article number012324
JournalPhysical Review A
Issue number1
StatePublished - 15 Jul 2016

Bibliographical note

Funding Information:
A.R. acknowledges the support of the Israel Science Foundation (Grant No. 039-8823), the support of the European commission (STReP EQUAM Grant Agreement No. 323714), EU Project DIADEMS and the Marie Curie Career Integration Grant (CIG) IonQuanSense (321798).

Publisher Copyright:
© 2016 American Physical Society.


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