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Telecom-band quantum optics with ytterbium atoms and silicon nanophotonics

Covey, Jacob P. and Sipahigil, Alp and Szoke, Szilard and Sinclair, Neil and Endres, Manuel and Painter, Oskar (2019) Telecom-band quantum optics with ytterbium atoms and silicon nanophotonics. Physical Review Applied, 11 (3). Art. No. 034044. ISSN 2331-7019. doi:10.1103/PhysRevApplied.11.034044.

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Wavelengths in the telecommunication window (approximately 1.25–1.65 μm) are ideal for quantum communication due to low transmission loss in fiber networks. To realize quantum networks operating at these wavelengths, long-lived quantum memories that couple to telecom-band photons with high efficiency need to be developed. We propose coupling neutral ytterbium atoms, which have a strong telecom-wavelength transition, to a silicon photonic crystal cavity. Specifically, we consider the ^3P_0↔^3D_1 transition in neutral ^(171)Yb to interface its long-lived nuclear spin in the metastable ^3P_0 “clock” state with a telecom-band photon at 1.4μm. We show that Yb atoms can be trapped using a short-wavelength (approximately 470 nm) tweezer at a distance of 350 nm from the silicon photonic crystal cavity. At this distance, due to the slowly decaying evanescent cavity field at a longer wavelength, we obtain a single-photon Rabi frequency of g/2π ≈ 100 MHz and a cooperativity of C ≈ 47 while maintaining a high photon collection efficiency into a single mode fiber. The combination of high system efficiency, telecom-band operation, and long coherence times makes this platform well suited for quantum optics on a silicon chip and long-distance quantum communication.

Item Type:Article
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URLURL TypeDescription Paper
Covey, Jacob P.0000-0001-5104-6883
Sipahigil, Alp0000-0003-1469-5272
Endres, Manuel0000-0002-4461-224X
Painter, Oskar0000-0002-1581-9209
Additional Information:© 2019 American Physical Society. Received 30 October 2018; revised manuscript received 16 January 2019; published 19 March 2019. We acknowledge Mohammad Mirhosseini, Alexandre Cooper-Roy, and Matthew D. Shaw for useful discussions and Hengjiang (Jared) Ren with help with comsol simulations. We also ackowledge Hannes Bernien and Jeff Thompson for critical reading of the manuscript. J.P.C. acknowledges support from the Caltech PMA Division for postdoctoral fellowship funding, A.S. acknowledges support from the Caltech IQIM for postdoctoral fellowship funding, and N.S. acknowledges funding by the Alliance for Quantum Technologies’ Intelligent Quantum Networks and Technologies (INQNET) research program. We acknowledge funding provided by the Institute for Quantum Information and Matter, a NSF Physics Frontiers Center (NSF Grant No. PHY-1733907). This work is also supported by the NSF CAREER award, the Sloan Foundation, and by the NASA/JPL President’s and Director’s Fund.
Group:Institute for Quantum Information and Matter, INQNET
Funding AgencyGrant Number
Caltech Division of Physics, Mathematics and AstronomyUNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Alliance for Quantum TechnologiesUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
JPL President and Director's FundUNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20181203-111424788
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91402
Deposited By: Tony Diaz
Deposited On:03 Dec 2018 19:27
Last Modified:16 Nov 2021 03:41

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