Quasi-classical rules for qubit spin-rotation error suppression
Quasi-classical rules for qubit spin-rotation error suppression
复制标题
量子位自旋旋转误差抑制的准经典规则
DOI：
10.1088/1361-6404/abe13d
复制
发表时间：
2021
影响因子：
0.7
通讯作者：
Su, Qile David
中科院分区：
文献类型：
--
作者：
Su, Qile David
量子计算中经常遇到的系统误差源是控制脉冲的缺陷，控制脉冲是控制量子位门操作的经典场。通过对自旋波函数的量子力学时间演化算子的分析，已经证明复合脉冲可以减轻某些系统误差，并且为误差抑制复合脉冲的设计开发了一种有吸引力的几何解释。在这里，我们表明可以在准经典框架内获得这些相同的脉冲序列。这就提出了一个问题：是否存在纠错程序，以无法在准经典公式中重现的方式利用纠缠。
A frequently encountered source of systematic error in quantum computations is imperfections in the control pulses which are the classical fields that control qubit gate operations. From an analysis of the quantum-mechanical time-evolution operator of the spin wavefunction, it has been demonstrated that composite pulses can mitigate certain systematic errors and an appealing geometric interpretation was developed for the design of error-suppressing composite pulses. Here we show that these same pulse sequences can be obtained within a quasi-classical framework. This raises the question of whether error-correction procedures exist that exploit entanglement in a manner that can not be reproduced in the quasi-classical formulation.
影响因子：
12.5
作者：
Choi, Joonhee;Zhou, Hengyun;Lukin, Mikhail D.
通讯作者：
Lukin, Mikhail D.
影响因子：
8.6
作者：
Ryan, C. A.;Hodges, J. S.;Cory, D. G.
通讯作者：
Cory, D. G.