论文标题
通过切碎的随机基础最佳控制,通用门设置实现通用门集实现
Robustness of a universal gate set implementation in transmon systems via Chopped Random Basis optimal control
论文作者
论文摘要
我们从数值上研究了一个由CNOT,HADAMARD,相位和$π/8 $门组成的通用双Qubit Gate集的实现,用于基于Transmon的系统。实现此类门的控制信号是使用切碎的随机基础最佳控制技术获得的,目标门不忠于$ 10^{ - 2} $。在优化过程中,我们解释了对非计算状态的泄漏,这是影响跨矩对矩的重要非理想性。我们还测试和基准测试了最佳控制解决方案,以针对引入高斯白噪声和光谱失真,这是影响Transmon系统中控制信号的两个关键非理想性。
We numerically study the implementation of a universal two-qubit gate set, composed of CNOT, Hadamard, phase and $π/8$ gates, for transmon-based systems. The control signals to implement such gates are obtained using the Chopped Random Basis optimal control technique, with a target gate infidelity of $10^{-2}$. During the optimization processes we account for the leakage toward non-computational states, an important non-ideality affecting transmon qubits. We also test and benchmark the optimal control solutions against the introduction of Gaussian white noise and spectral distortion, two key non-idealities that affect the control signals in transmon systems.