This repository includes the procedure to calibration a Cross-Resonance gate on fixed-frequency superconducting qubits using qiskit-pulse. The notebook uses qiskit-dynamics as a simulation backend, but the code also works with the real hardware on IBM Quantum Platform.
Apart from the standard calibration of the echoed Cross-Resonance, it also includes
- the calculation of the recursive DRAG pulse that suppress transition error on the control Transmon and the IY-DRAG pulse to cancel the ZZ interaction.
- the calibration of direct Cross-Resonance gate.
The dependency is documented under requirement.txt, with qiskit support till 0.46. The notebooks are tested under the given environment. As qiskit keeps evolving, there is no garantee that it alwasy works on the newest version.