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Towards an efficient nanophotonic platform integrating quantum memories and single qubits based on rare-earth ions

Hasan, Zameer U. and Hemmer, Philip R. and Lee, Hwang and Migdall, Alan L. and Zhong, Tian and Kindem, Jonathan M. and Bartholomew, John G. and Rochman, Jake and Craiciu, Ioana and Miyazono, Evan and Faraon, Andrei (2017) Towards an efficient nanophotonic platform integrating quantum memories and single qubits based on rare-earth ions. In: Advances in Photonics of Quantum Computing, Memory, and Communication X. Proceedings of SPIE. No.10118. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 101180N. ISBN 9781510606777. http://resolver.caltech.edu/CaltechAUTHORS:20170505-135335967

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Abstract

The integration of rare-earth ions in an on-chip photonic platform would enable quantum repeaters and scalable quantum networks. While ensemble-based quantum memories have been routinely realized, implementing single rare-earth ion qubit remains an outstanding challenge due to its weak photoluminescence. Here we demonstrate a nanophotonic platform consisting of yttrium vanadate (YVO) photonic crystal nanobeam resonators coupled to a spectrally dilute ensemble of Nd ions. The cavity acts as a memory when prepared with spectral hole burning, meanwhile it permits addressing of single ions when high-resolution spectroscopy is employed. For quantum memory, atomic frequency comb (AFC) protocol was implemented in a 50 ppm Nd:YVO nanocavity cooled to 480 mk. The high-fidelity quantum storage of time-bin qubits is demonstrated with a 80% efficient WSi superconducting nanowire single photon detector (SNSPD). The small mode volume of the cavity results in a peak atomic spectral density of <10 ions per homogeneous linewidth, suitable for probing single ions when detuned from the center of the inhomogeneous distribution. The high-cooperativity coupling of a single ion yields a strong signature (20%) in the cavity reection spectrum, which could be detected by our efficient SNSPD. We estimate a signal-to-noise ratio exceeding 10 for addressing a single Nd ion with its 879.7nm transition. This, combines with the AFC memory, constitutes a promising platform for preparation, storage and detection of rare-earth qubits on the same ship.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.2251673DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2606072PublisherArticle
ORCID:
AuthorORCID
Zhong, Tian0000-0003-3884-7453
Kindem, Jonathan M.0000-0002-7737-9368
Bartholomew, John G.0000-0003-0780-2471
Craiciu, Ioana0000-0002-8670-0715
Miyazono, Evan0000-0003-2176-0335
Faraon, Andrei0000-0002-8141-391X
Additional Information:© 2017 SPIE. This work was funded by California Institute of Technology (Caltech) and National Science Foundation (NSF) CAREER award number 1454607. 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.
Group:IQIM, Institute for Quantum Information and Matter, Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
CaltechUNSPECIFIED
NSFECCS-1454607
Institute of Quantum Information and Matter (IQIM)UNSPECIFIED
NSF Physics Frontiers CenterUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Subject Keywords:Quantum optics, Quantum information and processing, Quantum memories
Record Number:CaltechAUTHORS:20170505-135335967
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170505-135335967
Official Citation:Tian Zhong ; Jonathan M. Kindem ; John G. Bartholomew ; Jake Rochman ; Ioana Craiciu ; Evan Miyazono ; Andrei Faraon; Towards an efficient nanophotonic platform integrating quantum memories and single qubits based on rare-earth ions . Proc. SPIE 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X, 101180N (February 20, 2017); doi:10.1117/12.2251673
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77233
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 May 2017 21:06
Last Modified:12 Jul 2019 16:59

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