论文标题
关于53 QUIT系统中纠缠Qubit的误差缩放的阶段分析
Phase Analysis on the Error Scaling of Entangled Qubits in a 53-Qubit System
论文作者
论文摘要
我们已经仔细研究了IBM Rochester上纠缠量子的行为，并在“嘈杂”的环境下进行了各种连接。进行了基于我们对GHz样状态的测量值的相轨迹分析。我们的结果表明，重要的事实是，纠缠量他的尺度属性仅影响其振幅的加权，以“保护”环境噪声。大多数测量的可重复性已在合理短的门操作时间内得到证实。但是，仍然有一些量子位组合，它们以量子状态之间的过渡形式显示出显着的纠缠演变。详细分析了纠缠进化的相位轨迹，以及类似GHz状态的突然死亡和新激发状态的复兴的影响。所有观察到的纠缠量子的轨迹均在“嘈杂”的中间尺度量子（NISQ）计算机中的新激发态的影响下出现。
We have studied carefully the behaviors of entangled qubits on the IBM Rochester with various connectivities and under a "noisy" environment. A phase trajectory analysis based on our measurements of the GHZ-like states is performed. Our results point to an important fact that entangled qubits are "protected" against environmental noise by a scaling property that impacts only the weighting of their amplitudes. The reproducibility of most measurements has been confirmed within a reasonably short gate operation time. But there still are a few combinations of qubits that show significant entanglement evolution in the form of transitions between quantum states. The phase trajectory of an entangled evolution, and the impact of the sudden death of GHZ-like states and the revival of newly excited states are analyzed in details. All observed trajectories of entangled qubits arise under the influences of the newly excited states in a "noisy" intermediate-scale quantum (NISQ) computer.
