TY - JOUR
T1 - Continuous and deterministic all-photonic cluster state of indistinguishable photons
AU - Su, Zu En
AU - Taitler, Boaz
AU - Schwartz, Ido
AU - Cogan, Dan
AU - Nassar, Ismail
AU - Kenneth, Oded
AU - Lindner, Netanel H.
AU - Gershoni, David
N1 - Publisher Copyright:
© 2024 The Author(s). Published by IOP Publishing Ltd.
PY - 2024/7
Y1 - 2024/7
N2 - Cluster states are key resources for measurement-based quantum information processing. Photonic cluster and graph states, in particular, play indispensable roles in quantum network and quantum metrology. We demonstrate a semiconductor quantum dot based device in which the confined hole spin acts as a needle in a quantum knitting machine producing continuously and deterministically at sub-Gigahertz repetition rate single indistinguishable photons which are all polarization entangled to each other and to the spin in a one dimensional cluster state. By projecting two nonadjacent photons onto circular polarization bases we disentangle the spin from the photons emitted in between. This way we demonstrate a novel way for producing deterministic and continuous all-photonic cluster states. We use polarization tomography on four sequentially detected photons to demonstrate and to directly quantify the robustness of the cluster’s entanglement and the determinism in its photon generation.
AB - Cluster states are key resources for measurement-based quantum information processing. Photonic cluster and graph states, in particular, play indispensable roles in quantum network and quantum metrology. We demonstrate a semiconductor quantum dot based device in which the confined hole spin acts as a needle in a quantum knitting machine producing continuously and deterministically at sub-Gigahertz repetition rate single indistinguishable photons which are all polarization entangled to each other and to the spin in a one dimensional cluster state. By projecting two nonadjacent photons onto circular polarization bases we disentangle the spin from the photons emitted in between. This way we demonstrate a novel way for producing deterministic and continuous all-photonic cluster states. We use polarization tomography on four sequentially detected photons to demonstrate and to directly quantify the robustness of the cluster’s entanglement and the determinism in its photon generation.
KW - cluster states
KW - continuous generation
KW - deterministic generation
KW - indistinguishable photons
UR - http://www.scopus.com/inward/record.url?scp=85197699364&partnerID=8YFLogxK
U2 - 10.1088/1361-6633/ad4c93
DO - 10.1088/1361-6633/ad4c93
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C2 - 38957917
AN - SCOPUS:85197699364
SN - 0034-4885
VL - 87
JO - Reports on Progress in Physics
JF - Reports on Progress in Physics
IS - 7
M1 - 077601
ER -