According to one of the lead researchers, this experimental demonstration leveraged key expertise from Berkeley Lab and UC Berkeley and built on previous multidisciplinary research at AQT on superconducting qutrits, enabling them to further explore a qutrit-based architecture and adapt the RB method to characterize the qutrit processor properly.
AQT scientists demonstrated an error characterization method — randomized benchmarking (RB) — on a superconducting qutrit quantum processor. Their results were published at Physical Review Letters earlier this year, marking a significant milestone towards benchmarking the accuracy of qutrit-based quantum devices and identifying the barriers to overcome in future research.