Multicell Atomic Quantum Memory as a Hardware-Efficient Quantum Repeater Node

  title={Multicell Atomic Quantum Memory as a Hardware-Efficient Quantum Repeater Node},
  author={C. Li and S. Zhang and Y.-K. Wu and N. Jiang and Yunfei Pu and L. M. Duan},
  journal={PRX Quantum},
For scalable quantum communication and networks, a key step is to realize a quantum repeater node that can efficiently connect different segments of atom-photon entanglement using quantum memories. We report a compact and hardware-efficient realization of a quantum repeater node using a single atomic ensemble for multicell quantum memories. Millisecond lifetime is achieved for individual memory cells after suppressing the magnetic-field-induced inhomogeneous broadening and the atomic-motion… 

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