Unitary quantum gates constitute the building blocks of Quantum Computing in the circuit paradigm. In this work, we engineer a locally driven two-qubit Hamiltonian whose instantaneous ground-state dynamics generates the controlled-NOT (CNOT) quantum gate. In practice, quantum gates have to be implemented in finite-time, hence non-adiabatic and external noise effects debilitate gate fidelities. Here, we show that counterdiabatic control can restore gate performance with near perfect fidelities even in open quantum systems subject to decoherence.
@article{arxiv.2505.20000,
title = {Correcting noisy quantum gates with shortcuts to adiabaticity},
author = {Moallison F. Cavalcante and Bariş Çakmak and Marcus V. S. Bonança and Sebastian Deffner},
journal= {arXiv preprint arXiv:2505.20000},
year = {2025}
}