High dimensional entanglement between a photon and a multiplexed atomic quantum memory

Autor:	Li, Chang, Wu, Yukai, Chang, Wei, Zhang, Sheng, Pu, Yunfei, Jiang, Nan, Duan, Luming
Rok vydání:	2019
Předmět:	Quantum Physics Physics - Atomic Physics Physics - Optics
Zdroj:	Phys. Rev. A 101, 032312 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.101.032312
Popis:	Multiplexed quantum memories and high-dimensional entanglement can improve the performance of quantum repeaters by promoting the entanglement generation rate and the quantum communication channel capacity. Here, we experimentally generate a high-dimensional entangled state between a photon and a collective spin wave excitation stored in the multiplexed atomic quantum memory. We verify the entanglement dimension by the quantum witness and the entanglement of formation. Then we use the high-dimensional entangled state to test the violation of the Bell-type inequality. Our work provides an effective method to generate multidimensional entanglement between the flying photonic pulses and the atomic quantum interface. Comment: 9 pages, 6 figures, comments are welcome
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1911.10746 Zobrazit plný text záznamu View this record from Arxiv