Multipartite entanglement of billions of motional atoms heralded | ResearchBunny

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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

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