A Coincidence Counting System for Twelve-photon Entanglement Experiment

Yi Hu, Wei Li, Yue-Fei Wang, Ge Jin, Xiao Jiang

2019

Abstract

Multi-photon entanglement is an important resource for photonic quantum information, and its scale has reached 6 photons with 18 qubits or 10 photons with 10 qubits. The upcoming challenge will be 12 photons with 12 qubits. In the entanglement experiments of such a plurality of photons, the coincidence counter has always been an important tool, and the experiment of 12 photons poses new requirements. Here we report the upgrading of a coincident counting system that worked well in 6-photon and 10-photon experiments to the coming 12-photon one. The scalability of the coincident counting system has been shown. By optimizing the logic in the Field Programmable Gate Array(FPGA) and the LabVIEW program, not only the number of input channels has been increased for 12 photons, but also the functions of signal alignment and status monitoring have been improved. The coincidence result can be analysed both in real-time and off-line. The system is capable to extend to 104 channels at most for channel consuming application.

Paper Citation

in Harvard Style

Hu Y., Li W., Wang Y., Jin G. and Jiang X. (2019). A Coincidence Counting System for Twelve-photon Entanglement Experiment.In Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-364-3, pages 39-45. DOI: 10.5220/0007371300390045

in Bibtex Style

@conference{photoptics19,
author={Yi Hu and Wei Li and Yue-Fei Wang and Ge Jin and Xiao Jiang},
title={A Coincidence Counting System for Twelve-photon Entanglement Experiment},
booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2019},
pages={39-45},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007371300390045},
isbn={978-989-758-364-3},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - A Coincidence Counting System for Twelve-photon Entanglement Experiment
SN - 978-989-758-364-3
AU - Hu Y.
AU - Li W.
AU - Wang Y.
AU - Jin G.
AU - Jiang X.
PY - 2019
SP - 39
EP - 45
DO - 10.5220/0007371300390045