Measuring improvement in the design of pulses for quantum systems

Seeking a method for reducing error in noisy quantum systems, Kajsa Williams and Louis-S. Bouchard, researchers at the Center for Quantum Science and Engineering at the University of California, Los Angeles, implemented and evaluated single-qubit gates performance using specially designed composite and adiabatic pulses. While they found no particular advantages in terms of leakage and seepage of the gates compared to standard gates, robustness to control field error was greatly improved.