Multiphoton Graph States from a Solid-State Single-Photon Source

Jinpeng Li

doi:10.1021/acsphotonics.0c00192

2020-06-05

DOI：10.1021/acsphotonics.0c00192

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摘要

En 中文

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 similar to 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.

Keyword:

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

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期刊

ACS Photonics

IF:

6.7

论文数:

5.6K

被引数:

2.5W

机构

Sun Yat Sen University

学者数:

9.9W

论文数: 7.2W

被引数: 95

chinese academy of sciences

学者数:

56.7W

论文数: 45.0W

被引数: 704

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