We numerically study the implementation of a universal two-qubit gate set, composed of CNOT, Hadamard, phase and π/8 gates, for transmon-based systems. The control signals to implement such gates are obtained using the Chopped Random Basis optimal control technique, with a target gate infidelity of 10−2. During the optimization processes we account for the leakage toward non-computational states, an important non-ideality affecting transmon qubits. We also test and benchmark the optimal control solutions against the introduction of Gaussian white noise and spectral distortion, two key non-idealities that affect the control signals in transmon systems.
@article{arxiv.2207.13447,
title = {Robustness of a universal gate set implementation in transmon systems via Chopped Random Basis optimal control},
author = {Hervè Atsè Corti and Leonardo Banchi and Alessandro Cidronali},
journal= {arXiv preprint arXiv:2207.13447},
year = {2022}
}