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Multipartite entanglement of billions of motional atoms heralded by single photon

Physics

Multipartite entanglement of billions of motional atoms heralded by single photon

H. Li, J. Dou, et al.

This groundbreaking research by Hang Li, Jian-Peng Dou, Xiao-Ling Pang, Chao-Ni Zhang, Zeng-Quan Yan, Tian-Huai Yang, Jun Gao, Jia-Ming Li, and Xian-Min Jin showcases the creation and certification of multipartite entanglement among billions of motional atoms in a room-temperature quantum memory, revealing significant insights into ambient condition entanglement and decoherence effects.

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Playback language: English
Abstract
This paper presents the creation and certification of multipartite entanglement among billions of motional atoms in a room-temperature quantum memory. The entanglement, a W state, is heralded by a single photon and verified using an M-separability witness associated with photon statistics. The study demonstrates the existence of genuine multipartite entanglement at ambient conditions and reveals the effects of decoherence on entanglement depth.
Publisher
npj Quantum Information
Published On
Oct 05, 2021
Authors
Hang Li, Jian-Peng Dou, Xiao-Ling Pang, Chao-Ni Zhang, Zeng-Quan Yan, Tian-Huai Yang, Jun Gao, Jia-Ming Li, Xian-Min Jin
Tags
multipartite entanglement
quantum memory
W state
decoherence
photon statistics
room-temperature
quantum physics

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