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. https://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.
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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: | Institute for Quantum Information and Matter, Kavli Nanoscience Institute | ||||||||||||||
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Subject Keywords: | Quantum optics, Quantum information and processing, Quantum memories | ||||||||||||||
Series Name: | Proceedings of SPIE | ||||||||||||||
Issue or Number: | 10118 | ||||||||||||||
DOI: | 10.1117/12.2251673 | ||||||||||||||
Record Number: | CaltechAUTHORS:20170505-135335967 | ||||||||||||||
Persistent URL: | https://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: | 15 Nov 2021 17:29 |
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