论文标题
高维量子系统上的高效率任意量子操作
High-efficiency arbitrary quantum operation on a high-dimensional quantum system
论文作者
论文摘要
操纵量子系统的能力是量子技术开发的核心。量子控制的最终目标是实现所有可能的开放量子系统动力学的任意量子操作（AquoS）。但是，苛刻的额外物理资源构成了巨大的障碍。在这里，我们在实验上证明了Aquo在光子qudit上的通用方法，该光子Qudit具有最低的物理资源，具有两级Ancilla的最低物理资源和$ \ log_ {2} d $ -Scale电路深度的$ d $二维系统。然后将Aquo应用于量子轨迹模拟中，以进行量子子空间稳定和量子ZENO动力学，以及不连贯的操作和Qudit的广义测量值。因此，用于完整量子控制的演示的Aquo在量子信息科学中将起着必不可少的作用。
The ability to manipulate quantum systems lies at the heart of the development of quantum technology. The ultimate goal of quantum control is to realize arbitrary quantum operations (AQuOs) for all possible open quantum system dynamics. However, the demanding extra physical resources impose great obstacles. Here, we experimentally demonstrate a universal approach of AQuO on a photonic qudit with minimum physical resource of a two-level ancilla and a $\log_{2}d$-scale circuit depth for a $d$-dimensional system. The AQuO is then applied in quantum trajectory simulation for quantum subspace stabilization and quantum Zeno dynamics, as well as incoherent manipulation and generalized measurements of the qudit. Therefore, the demonstrated AQuO for complete quantum control would play an indispensable role in quantum information science.
