Details of the six classes of circuits used to characterize theZ-type phases of the controlled-Z gate

Rx(−π 2) ϕ01,11 = θZI − θZZ |0⟩ Ry(π 2) U2k CZ Ry(−π 2) |0⟩ X X |0⟩ Ry(π 2) U2k CZ Rx(−π 2) |0⟩ X X Table A1

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quant-ph · 2025-02-10 · conditional · novelty 5.0

RPE-based closed-loop calibration reduces coherent errors in a superconducting CZ gate, cutting diamond distance to the ideal gate by about half.

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Heisenberg-limited calibration of entangling gates with robust phase estimation quant-ph · 2025-02-10 · conditional · none · ref 8
RPE-based closed-loop calibration reduces coherent errors in a superconducting CZ gate, cutting diamond distance to the ideal gate by about half.