Parametric Light-Matter Interaction in the Single-Photon Strong Coupling Limit

• URL: http://arxiv.org/abs/2407.02024v3
• Date: Wed, 4 Sep 2024 07:06:20 GMT
• Title: Parametric Light-Matter Interaction in the Single-Photon Strong Coupling Limit
• Authors: C. A. Potts, R. C. Dekker, S. Deve, E. W. Strijbis, G. A. Steele,
• Abstract summary: In this article, we demonstrate a new paradigm of parametrically coupled microwave circuits. We replace one linear microwave cavity with a superconducting transmon qubit. Applying a strong sideband drive results in an on-demand, non-linear Jaynes-Cummings interaction with the linear resonator.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Parametric coupling between harmonic oscillators has enabled exquisite measurement precision and control of linear resonators, being extensively studied, for example, in cavity optomechanics. This level of control has been made possible by using strong sideband drives, enhancing the coupling rate while also linearizing the interaction. In this article, we demonstrate a new paradigm of parametrically coupled microwave circuits replacing one linear microwave cavity with a superconducting transmon qubit. Our system utilizes photon-pressure coupling between the transmon qubit and a highly linear microwave resonator, a microwave analog of the radiation-pressure interaction. Applying a strong sideband drive results in an on-demand, non-linear Jaynes-Cummings interaction with the linear resonator. We also observe a single-photon coupling rate an order of magnitude larger than all decay rates, placing the device in the single-photon strong coupling regime. This demonstration of photon-pressure Jaynes-Cummings interactions paves the way for developing novel photon-pressure quantum information processing hardware and will enable exotic tests of quantum gravity in the future by interfacing this new platform with mechanical resonators.

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