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Published September 29, 2017 | Version Supplemental Material
Journal Article Open

Nanophotonic rare-earth quantum memory with optically controlled retrieval

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Abstract

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 its 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 via 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.

Additional Information

© 2017 American Association for the Advancement of Science. Received 6 May 2017; Accepted 23 August 2017; Published online 31 August 2017. This work was funded by National Science Foundation (NSF) CAREER award number 1454607, Air Force Office of Scientific Research (AFOSR), Young Investigator Award (FA9550-15-1-0252), AFOSR Quantum Transduction MURI (FA9550-15-1-002), and Defense Advanced Research Projects Agency (DARPA) QUINESS W31P4Q-15-1-0012. Equipment funding was also provided by the Institute of Quantum Information and Matter (IQIM), an NSF Physics Frontiers Center with support of the Moore Foundation. The device nanofabrication was performed in the Kavli Nanoscience Institute at Caltech. J.G.B. acknowledges the support of the American Australian Association's Northrop Grumman Fellowship. We thank Dr. Alban Ferrier and Dr. Philippe Goldner for providing Nd:YSO crystals for initial quantum memory experiments. Part of the research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

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Additional details

Identifiers

Eprint ID
80412
Resolver ID
CaltechAUTHORS:20170815-100238435

Funding

NSF
ECCS-1454607
Air Force Office of Scientific Research (AFOSR)
FA9550-15-1-0252
Air Force Office of Scientific Research (AFOSR)
FA9550-15-1-002
Defense Advanced Research Projects Agency (DARPA)
W31P4Q-15-1-0012
Institute of Quantum Information and Matter (IQIM)
Gordon and Betty Moore Foundation
Northrop Grumman Corporation
NASA/JPL/Caltech

Dates

Created
2017-09-01
Created from EPrint's datestamp field
Updated
2021-11-15
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Caltech Custom Metadata

Caltech groups
Kavli Nanoscience Institute, Institute for Quantum Information and Matter