Control of multi-modal scattering in a microwave frequency comb

Abstract

Control over the coupling between multiple modes of a frequency comb is an important step toward measurement-based quantum computation with a continuous-variable system. We demonstrate the creation of square-ladder correlation graphs in a microwave comb with 95 modes. The graphs are engineered through precise control of the relative phase of three pumps applied to a Josephson parametric oscillator. Experimental measurement of the mode scattering matrix is in good agreement with theoretical predictions based on a linearized equation of motion of the parametric oscillator. The digital methods used to create and measure the correlations are easily scaled to more modes and more pumps, with the potential to tailor a specific correlation graph topology.

9 pages, 7 figures

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Cited by in corpus (5)

• Continuous-variable square-ladder cluster states in a microwave frequency comb
• Floquet Engineering and Harnessing Giant Atoms in Frequency-Comb Emission and Bichromatic Correlations in Waveguide QED
• Non-reciprocal scattering in a microwave frequency comb
• Solving the inverse parametric problem
• Tunable frequency conversion and comb generation with a superconducting artificial atom