Realizing multi-qubit controlled nonadiabatic holonomic gates with connecting systems
Realizing multi-qubit controlled nonadiabatic holonomic gates with connecting systems
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DOI：
10.1007/s43673-022-00043-6
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发表时间：
2022-05-09
期刊：
影响因子：
--
通讯作者：
Tong, D. M.
中科院分区：
文献类型：
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作者：
Xu, G. F.;Tong, D. M.
多量子比特控制门是量子信息处理中的常用门。虽然它们可以用来自一个和两个量子比特门的通用集合的门来构建，但是这个过程通常变得非常苛刻，因为这种门的数量随着计算问题的大小而迅速增长。因此，找到一种方法来实现它们具有更少的步骤，因此具有减少的退相干误差是重要的。特别是，量子信息正在进入有噪声的中尺度量子时代，在这个时代，量子计算机没有足够的资源来完全容错，因此只能支持短时间的计算。这使得减少步骤变得更加重要。在这里，我们提出了多量子比特控制的非绝热完整门连接系统的实现。我们的方案可以有效地减少实现的操作步骤，从而减少退相干的影响，提高计算精度。因此，实现高效、鲁棒的量子信息处理器是非常有意义的。
Multi-qubit controlled gates are frequently used in quantum information processing. Although they can be built with gates from the universal set of one- and two-qubit gates, this procedure typically becomes very demanding as the number of such gates rapidly grows with the size of the computational problem. Thus, finding a way to realize them with fewer steps and therefore with reduced decoherence errors is important. Particularly, quantum information is entering noisy intermediate-scale quantum era and in this era, quantum computers do not have enough resources for full fault tolerance and therefor can only support the computation with a short duration. This makes the reduction of the steps even more important. Here, we propose the realization of multi-qubit controlled nonadiabatic holonomic gates with connecting systems. Our proposal can efficiently reduce the operation steps of the realization, thereby reducing the affection from decoherence and increasing the precision of the computation. So, it is useful to realize efficient and robust quantum information processors.