Fig. 6: Experimentally characterizing drive asymmetry.
From: High-fidelity parametric beamsplitting with a parity-protected converter
We directly probe the coupler ‘ge/3’ transition due to any residual common-mode drive. The coupler is prepared in the ground state at t = 0 μs, followed by a single-tone drive through the buffer-mode near ωc/3. The rate of coherent oscillation of the coupler population (color-scale) compared to the effective Zeeman shift (x-axis) of this resonance frequency bounds the drive asymmetry to <1%.
