Quantum-enhanced radiometry via approximate quantum error correction

W. Wang; Z.-J. Chen; X. Liu; W. Cai; Y. Ma; X. Mu; X. Pan; Z. Hua; L. Hu; Y. Xu; H. Wang; Y. P. Song; X.-B. Zou; C.-L. Zou; L. Sun

doi:10.1038/s41467-022-30410-8

Nature Communications (Jun 2022)

Quantum-enhanced radiometry via approximate quantum error correction

W. Wang,
Z.-J. Chen,
X. Liu,
W. Cai,
Y. Ma,
X. Mu,
X. Pan,
Z. Hua,
L. Hu,
Y. Xu,
H. Wang,
Y. P. Song,
X.-B. Zou,
C.-L. Zou,
L. Sun

Affiliations

W. Wang: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Z.-J. Chen: Key Laboratory of Quantum Information, CAS, University of Science and Technology of China
X. Liu: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
W. Cai: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Y. Ma: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
X. Mu: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
X. Pan: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Z. Hua: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
L. Hu: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Y. Xu: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
H. Wang: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
Y. P. Song: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University
X.-B. Zou: Key Laboratory of Quantum Information, CAS, University of Science and Technology of China
C.-L. Zou: Key Laboratory of Quantum Information, CAS, University of Science and Technology of China
L. Sun: Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University

DOI: https://doi.org/10.1038/s41467-022-30410-8
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 8

Abstract

Read online

Exotic quantum states can be advantageous for sensing, but are very fragile, so that some form of quantum error correction is needed. Here, the authors show how approximate QEC helps overcoming decoherence due to noise when measuring the excitation population of a receiver mode in a superconducting circuit.

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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