Robust, fast, and high-fidelity composite single-qubit gates for superconducting transmon qubits

Hristo G. Tonchev; Boyan T. Torosov; Nikolay V. Vitanov

doi:10.1103/s7h1-lqc1

← Back to search

Robust, fast, and high-fidelity composite single-qubit gates for superconducting transmon qubits

Hristo G. Tonchev, Boyan T. Torosov, Nikolay V. Vitanov

DOI 10.1103/s7h1-lqc1 · Physical Review A

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

We introduce a quantum control method for superconducting transmon qubits that substantially outperforms conventional techniques in precision and robustness against coherent errors. Our approach leverages composite pulses (CPs) to effectively mitigate system-specific errors, such as qubit frequency and anharmonicity variations. By utilizing CPs, we demonstrate both complete and partial population transfers between qubit states, as well as the implementation of two essential single-qubit quantum gates. Simulations reveal substantial reductions in common error rates and gate durations. The effectiveness of our method is validated through four independent verification techniques, underscoring its potential for advancing quantum computing with superconducting qubits.