Pulse sequence for the CROT operation. A trapezoidal waveform with a ramp time of 20 ns is used to initialize the spins in the |↓↑⟩ -state and to read out their state after applying two microwave bursts resonant with Q2 ( f 2↓ = 4.25 GHz) and Q1 ( f 1↑ = 4.66 GHz).
