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arXiv · 2010.11427

High-efficiency arbitrary quantum operation on a high-dimensional quantum system

Weizhou Cai·Jiaxiu Han·Ling Hu·Yuwei Ma·Xianghao Mu·Weiting Wang·Yuan Xu·Ziyue Hua·Haiyan Wang·Yipu Song·Jingning Zhang·Changling Zou·Luyan Sun
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Abstract

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.

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Weizhou Cai, Jiaxiu Han, Ling Hu, Yuwei Ma, Xianghao Mu, Weiting Wang, Yuan Xu, Ziyue Hua, Haiyan Wang, Yipu Song, Jingning Zhang, Changling Zou, Luyan Sun. 2020-10-22. High-efficiency arbitrary quantum operation on a high-dimensional quantum system. https://doi.org/10.1103/physrevlett.127.090504

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