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Hybrid quantum systems with circuit quantum electrodynamics

Nature Physics volume 16, pages 257–267 (2020)Cite this article

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Abstract

The rise of quantum information science has provided new perspectives on quantum mechanics, as well as a common language for quantum engineering. The focus on platforms for the manipulation and processing of quantum information bridges between different research areas in physics as well as other disciplines. Such a crossover between borders is well embodied by the development of hybrid quantum systems, where heterogeneous physical systems are combined to leverage their individual strengths for the implementation of novel functionalities. In the microwave domain, the hybridization of various quantum degrees of freedom has been tremendously helped by superconducting quantum circuits, owing to their large zero-point field fluctuations, small dissipation, strong nonlinearity and design flexibility. These efforts take place by expanding the framework of circuit quantum electrodynamics. Here, we review recent research on the creation of hybrid quantum systems based on circuit quantum electrodynamics, encompassing mechanical oscillators, quantum acoustodynamics with surface acoustic waves, quantum magnonics and coupling between superconducting circuits and ensembles or single spins.

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Fig. 1: Hybrid quantum systems with circuit QED.
Fig. 2: Electromechanics.
Fig. 3: Quantum acoustics devices.
Fig. 4: Quantum magnonics.
Fig. 5: Quantum magnetic resonance.
Fig. 6: Strong spin–photon coupling.

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Acknowledgements

P.B. acknowledges support from the European Research Council under grant 615767 (CIRQUSS), and from the Agence Nationale de la Recherche under grants QIPSE and NASNIQ. J.R.P. acknowledges support from Army Research Office grant W911NF-15-1-0149 and the Gordon and Betty Moore Foundation’s EPiQS Initiative through grant GBMF4535. Y.N. acknowledges supports from JST ERATO (no. JPMJER1601) and JSPS KAKENHI (no. 26220601).

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Authors and Affiliations

  1. Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA

    A. A. Clerk

  2. JILA, University of Colorado, Boulder, CO, USA

    K. W. Lehnert

  3. Department of Physics, University of Colorado, Boulder, CO, USA

    K. W. Lehnert

  4. National Institute of Standards and Technology, Boulder, CO, USA

    K. W. Lehnert

  5. Quantronics Group, SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay, Gif-sur-Yvette, France

    P. Bertet

  6. Department of Physics, Princeton University, Princeton, NJ, USA

    J. R. Petta

  7. Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, Japan

    Y. Nakamura

  8. Center for Emergnent Matter Science (CEMS), RIKEN, Wako, Japan

    Y. Nakamura

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J.R.P. and Princeton University have filed a non-provisional patent application related to spin–photon transduction (US patent application no. 16534431).

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Clerk, A.A., Lehnert, K.W., Bertet, P. et al. Hybrid quantum systems with circuit quantum electrodynamics. Nat. Phys. 16, 257–267 (2020). https://doi.org/10.1038/s41567-020-0797-9

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