期刊
SCIENCE
卷 357, 期 6358, 页码 1392-1395出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aan5959
关键词
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资金
- National Science Foundation (NSF) Faculty Early Career Development Program (CAREER) award [1454607]
- Air Force Office of Scientific Research (AFOSR) Young Investigator Award [FA9550-15-1-0252]
- AFOSR Quantum Transduction Multidisciplinary University Research Initiative [FA9550-15-1-002]
- Defense Advanced Research Projects Agency Quiness program [W31P4Q-15-1-0012]
- Moore Foundation
- American Australian Association's Northrop Grumman Fellowship
- Institute of Quantum Information and Matter, an NSF Physics Frontiers Center
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1454607] Funding Source: National Science Foundation
Optical quantum memories are essential elements in quantum networks for long-distance distribution of quantum entanglement. Scalable development of quantum network nodes requires on-chip qubit storage functionality with control of the readout time. We demonstrate a high-fidelity nanophotonic quantum memory based on a mesoscopic neodymium ensemble coupled to a photonic crystal cavity. The nanocavity enables > 95% spin polarization for efficient initialization of the atomic frequency comb memory and time bin-selective readout through an enhanced optical Stark shift of the comb frequencies. Our solid-state memory is integrable with other chip-scale photon source and detector devices for multiplexed quantum and classical information processing at the network nodes.
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