A Quantum Network Node Based on a Nanophotonic Interface for Atoms in Optical Tweezers

POSTER

Abstract

Efficient interfaces between photons and memory qubits constitute fundamental building blocks for quantum networking and large-scale quantum information processing. Our approach utilizes a photonic crystal cavity to realize such optical interfaces for atoms in optical tweezers. With this platform, we observe strong coupling between two atoms mediated by the cavity. Combining this observation with coherent manipulation and non-destructive measurements, we implement a protocol for generating Bell pairs that remain entangled when transported away from the cavity structure. These results present prospects for additional capabilities, such as rapid non-destructive readout and flexible connectivity, to neutral atom quantum information processors with integrated optical interconnects.

*This work was supported by the Center for Ultracold Atoms, the National Science Foundation, the Department of Defense NDSEG Fellowship, AFOSR MURI, Vannevar Bush Faculty Fellowship, and ARL CDQI.

Publication: P. Samutpraphoot et al., (2020) Strong coupling of two individually controlled atoms via a nanophotonic cavity. Physical review letters, 124(6), 063602.
T. Đorđević et al., in preparation (2021)

Presenters

  • Brandon Grinkemeyer

    • Harvard University

Authors

  • Brandon Grinkemeyer

    • Harvard University

  • Polnop Samutpraphoot

    • Harvard University

  • Tamara Dordevic

    • Harvard University

  • Paloma Ocola

    • Harvard University

  • Ivana Dimitrova

    • Harvard University

  • Hannes Bernien

    • University of Chicago

  • Vladan Vuletic

    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology

  • Mikhail Lukin

    • Harvard University