3 papers
quant-ph2026
Robust Parametric Quantum Gate Against Stochastic Time-Varying Noise
Yang He, Zigui Zhang, Zibo Miao
The performance of quantum processors in the noisy intermediate-scale quantum (NISQ) era is severely constrained by environmental noise and other uncertainties. While the recently…
quant-ph2025
Tight bounds of quantum speed limit for noisy dynamics via maximum rotation angles
Zihao Hu, Haidong Yuan, Zigui Zhang +2
The laws of quantum physics place a limit on the speed of computation. In particular, the evolution time of a system from an initial state to a final state cannot be arbitrarily sh…
quant-ph2025
Smolyak algorithm assisted robust control for quantum systems with uncertainties
Zigui Zhang, Zibo Miao, Xiu-Hao Deng
Efficient and systematic numerical methods for robust control design are crucial in quantum systems due to inevitable uncertainties or disturbances. We propose a novel approach tha…