Heisenberg-scaling measurement of the single-photon Kerr non-linearity using mixed states

Geng Chen; Nati Aharon; Yong-Nan Sun; Zi-Huai Zhang; Wen-Hao Zhang; De-Yong He; Jian-Shun Tang; Xiao-Ye Xu; Yaron Kedem; Chuan-Feng Li; Guang-Can Guo

doi:10.1038/s41467-017-02487-z

Nature Communications (Jan 2018)

Heisenberg-scaling measurement of the single-photon Kerr non-linearity using mixed states

Geng Chen,
Nati Aharon,
Yong-Nan Sun,
Zi-Huai Zhang,
Wen-Hao Zhang,
De-Yong He,
Jian-Shun Tang,
Xiao-Ye Xu,
Yaron Kedem,
Chuan-Feng Li,
Guang-Can Guo

Affiliations

Geng Chen: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Nati Aharon: Racah Institute of Physics, The Hebrew University of Jerusalem
Yong-Nan Sun: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Zi-Huai Zhang: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Wen-Hao Zhang: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
De-Yong He: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Jian-Shun Tang: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Xiao-Ye Xu: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Yaron Kedem: Department of Physics, AlbaNova University Center, Stockholm University
Chuan-Feng Li: CAS Key Laboratory of Quantum Information, University of Science and Technology of China
Guang-Can Guo: CAS Key Laboratory of Quantum Information, University of Science and Technology of China

DOI: https://doi.org/10.1038/s41467-017-02487-z
Journal volume & issue: Vol. 9, no. 1
pp. 1 – 6

Abstract

Read online

Quantum metrology usually relies on entanglement or squeezing for pursuing Heisenberg-limited precision. In this work, instead, the authors demonstrate Heisenberg-scaling measurement of a single photon Kerr’s nonlinearity using less-demanding mixed states.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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