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Single Photon Generation with <sup>138</sup>Ba<sup>+</sup> Ions Excited by Pulsed Light for Quantum Networking

ORAL

Abstract

Trapped ions are among the most promising platforms for quantum computing and quantum communication due to their long coherence and excellent controllability. Individual traps with ion chains can be combined into a larger quantum system offering scalability for universal quantum computing. 138Ba+ ions are especially attractive for quantum networking because they emit light at 493 nm, allowing us to benefit from fiber technologies for remote entanglement over long distances. We aim to demonstrate S1/2→P1/2 excitation with ultra-short pulsed light by a frequency-doubled Ti:Sapphire laser and the generation of single photons by spontaneous emission.

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Presenters

  • Mikhail Shalaev

    Electrical and Computer Engineering Department, Duke Quantum Center, Duke University, DQC, Duke University, Durham

Authors

  • Mikhail Shalaev

    Electrical and Computer Engineering Department, Duke Quantum Center, Duke University, DQC, Duke University, Durham

  • Isabella Goetting

    Physics Department, Duke Quantum Center, Duke University

  • Yao De George Toh

    Electrical and Computer Engineering Department, Duke Quantum Center, Duke University, JQI, University of Maryland, College Park

  • Jameson O'Reilly

    Physics Department, Duke Quantum Center, Duke University, JQI, University of Maryland, College Park

  • Sagnik Saha

    Physics Department, Duke Quantum Center, Duke University, JQI, University of Maryland, College Park

  • Christopher Monroe

    Department of Electrical and Computer Engineering and Physics, Duke Quantum Center, Duke University; Joint Quantum Institute, Department of Physics, University of Maryland, College Park; IonQ Inc., Duke University, JQI, QuIcs, Department of Physics, University of Maryland, IonQ Inc, College Park MD; DQC, Dept of Physics, Dept. of ECE, Duke University, Durham, NC, Electrical and Computer Engineering Department, Duke Quantum Center, Duke University; Joint Quantum Institute, University of Maryland, Duke Quantum Center and Department of Electrical and Computer Engineering (and Physics), Duke University, Durham, NC; IonQ, Inc., College Park, MD 20740