Quantum enhanced multiple-phase estimation with multi-mode N00N states

Seongjin Hong; Junaid ur Rehman; Yong-Su Kim; Young-Wook Cho; Seung-Woo Lee; Hojoong Jung; Sung Moon; Sang-Wook Han; Hyang-Tag Lim

doi:10.1038/s41467-021-25451-4

Nature Communications (Sep 2021)

Quantum enhanced multiple-phase estimation with multi-mode N00N states

Seongjin Hong,
Junaid ur Rehman,
Yong-Su Kim,
Young-Wook Cho,
Seung-Woo Lee,
Hojoong Jung,
Sung Moon,
Sang-Wook Han,
Hyang-Tag Lim

Affiliations

Seongjin Hong: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Junaid ur Rehman: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Yong-Su Kim: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Young-Wook Cho: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Seung-Woo Lee: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Hojoong Jung: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Sung Moon: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Sang-Wook Han: Center for Quantum Information, Korea Institute of Science and Technology (KIST)
Hyang-Tag Lim: Center for Quantum Information, Korea Institute of Science and Technology (KIST)

DOI: https://doi.org/10.1038/s41467-021-25451-4
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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N00N states are a key resource in quantum metrology, but the use of their multi-mode extension for multiparameter estimation has been elusive so far. Here, the authors use multi-mode N00N states - with N=2 photons in 4 modes - for multiple-phase estimation saturating the quantum Cramer-Rao bound.

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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