RPE-based closed-loop calibration reduces coherent errors in a superconducting CZ gate, cutting diamond distance to the ideal gate by about half.
However, GST can require hundreds to thousands of unique circuits to achieve high- precision estimates of the target coherent errors
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Heisenberg-limited calibration of entangling gates with robust phase estimation
RPE-based closed-loop calibration reduces coherent errors in a superconducting CZ gate, cutting diamond distance to the ideal gate by about half.