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Multiphoton graph states from a solid-state single-photon source

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Li_2020_Multiphoton_graph_states_ACSPhotonics_AAM.pdf (1.915Mb)
Date
15/07/2020
Author
Li, Jin-Peng
Qin, Jian
Chen, Ang
Duan, Zhao-Chen
Yu, Ying
Huo, YongHeng
Hoefling, Sven
Lu, Chao-Yang
Chen, Kai
Pan, Jian-Wei
Keywords
Multiphoton entanglement graph states
Four-photon GHZ state
Four-photon linear cluster state
One-way quantum computation
Solid-state single-photon source
Semiconductor quantum dot
QC Physics
NDAS
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Abstract
Photonic graph states are underlying resources for one-way optical quantum computation, quantum error correction, fundamental testing of quantum mechanics, and quantum communication networks. Most existing works, however, are based on the spontaneous parametric down-conversion sources that intrinsically suffer from probabilistic generation and double pair components. Here, we create two important classes of graph states, a polarization-encoded four-photon Greenberger–Horne–Zeilinger (GHZ) state and a linear cluster state, by actively demultiplexing a deterministic single-photon source from a semiconductor quantum dot embedded in a micropillar. A state fidelity of 0.790 ± 0.009 (0.763 ± 0.004) and a count rate of ∼13 Hz are observed for the four-photon GHZ (cluster) state. The results constitute a new route toward the multiphoton entanglement with deterministic single-photon sources.
Citation
Li , J-P , Qin , J , Chen , A , Duan , Z-C , Yu , Y , Huo , Y , Hoefling , S , Lu , C-Y , Chen , K & Pan , J-W 2020 , ' Multiphoton graph states from a solid-state single-photon source ' , ACS Photonics , vol. 7 , no. 7 , pp. 1603-1610 . https://doi.org/10.1021/acsphotonics.0c00192
Publication
ACS Photonics
Status
Peer reviewed
DOI
https://doi.org/10.1021/acsphotonics.0c00192
ISSN
2330-4022
Type
Journal article
Rights
Copyright © 2020 American Chemical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1021/acsphotonics.0c00192.
Description
This work was supported by the National Natural Science Foundation of China (Grants No. 11575174, No. 11674308, No. 11704424, and No. 11774326), the Chinese Academy of Sciences, and the National Key Research and Development Program of China.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/23313

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