Implementing optimal control pulse shaping for improved single-qubit gates

2010/05/07 by Jerry M. Chow, J. M. Chow, L. DiCarlo +9 · 6 citations
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physreva.82.040305

published as Phys. Rev. A 82, 040305(R) (2010) · 4 pages, 4 figures

arxiv created 2010/05/07 · openalex publication_date 2010/10/27 · arxiv updated 2012/03/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

We employ pulse shaping to abate single-qubit gate errors arising from the weak anharmonicity of transmon superconducting qubits. By applying shaped pulses to both quadratures of rotation, a phase error induced by the presence of higher levels is corrected. Using a derivative of the control on the quadrature channel, we are able to remove the effect of the anharmonic levels for multiple qubits coupled to a microwave resonator. Randomized benchmarking is used to quantify the average error per gate, achieving a minimum of 0.007+/-0.005 using 4 ns-wide pulse.

Citations

• Demonstration of conditional gate operation using superconducting charge qubits
• Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
• Coupling superconducting qubits via a cavity bus
• Entanglement Metrology Using a Joint Readout of Superconducting Qubits

Cited by

• Digital quantum simulation of spin models with circuit quantum electrodynamics
• A simple all-microwave entangling gate for fixed-frequency superconducting qubits
• Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits
• Superconducting Qubit with Purcell Protection and Tunable Coupling
• Scalable and Robust Randomized Benchmarking of Quantum Processes
• Jerry M. Chow [wikipedia]