A chip-scale source of entangled microwave and optical photonic qubits

ORAL

Abstract

Superconducting microwave circuits and optical photons are leading platforms for quantum computation and communication, respectively. We demonstrate a chip-scale source of entangled microwave and optical photonic qubits. Our device features a piezo-optomechanical transducer integrated with a light-robust superconducting resonator and operated as a microwave-optical photon-pair source. Using two consecutive pump pulses, we drive photon-pair emission into dual-rail optical and microwave photonic qubits defined on 'early' and 'late' output modes, and prepare microwave-optical Bell states. Entanglement is verified by measuring microwave-optical correlations in two orthogonal bases. Such a device can be used for optical distribution of entanglement between superconducting qubits.

*This work is supported by the ARO/LPS Cross Quantum Technology Systems program (grant W911NF-18-1-0103), U.S. Department of Energy Office of Science National Quantum Information Science Research Centers (Q-NEXT, award DE-AC02-06CH11357), IQIM, an NSF Physics Frontiers Center (grant PHY-1125565), KNI at Caltech, AWS Center for Quantum Computing, Moore Foundation (grant 7435), AFRL (FA8649-21-P-0781), NSF (ERC-1941583, OMA-2137642), and Packard Foundation (2020-71479)

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Publication: S. Meesala, S. Wood, D. P. Lake, P. Chiappina, C. Zhong, A. D. Beyer, M. D. Shaw, L. Jiang, and O. J. Painter, Non-classical microwave-optical photon pair generation with a chip-scale transducer, arXiV 2303.17684 (2023)

S. Meesala, D. P. Lake, S. Wood, P. Chiappina, C. Zhong, A. D. Beyer, M. D. Shaw, L. Jiang, and O. J. Painter, Quantum entanglement between microwave and optical photonic qubits (manuscript in preparation)

Presenters

  • Srujan Meesala

    • Caltech

Authors

  • Srujan Meesala

    • Caltech

  • David Lake

    • Caltech

  • Steven Wood

    • Caltech

  • Piero Chiappina

    • Caltech

  • Changchun Zhong

    • University of Chicago

  • Andrew Beyer

    • Jet Propulsion Laboratory

  • Matthew Shaw

    • Jet Propulsion Laboratory

  • Liang Jiang

    • University of Chicago

  • Oskar Painter

    • Caltech