Figure 4 - GHZ echo and oscillations

This dataset contains the two GHZ measurements:- Creating a GHZ state and reverting the circuit, i.e. a GHZ echo. Measurements are taken along every step of the circuit (Fig. 4b)- Creating a GHZ state and reverting the circuit, while varying the angles of the reversal pulses. This results in oscillations that probe the GHZ coherence (Fig. 4c).The dataset can be loaded using the QCoDeS fork https://github.com/nulinspiratie/Qcodes.The datasets also contain the processed counts for each circuit.Note that each circuit is repeated three times with different mapping pulses to extract the eight state populations of the nuclei and electron (see SM for details).