Fig. 6: Resonant drive vs. subharmonic drive.
From: Fast superconducting qubit control with subharmonic drives
The heat dissipated at base stage vs. Rabi rate Ω with different input line configurations and driving methods is compared. Using the subharmonic drive method, the attenuators at base stage can be reduced and replaced with reflective filters. The coupling to drive lines limits qubit coherence time T1 around 1 ms. Conventional resonant drives are shown as dashed lines, subharmonic drives are shown as solid lines.
