Quantum process tomography on holographic metasurfaces

被引：6

作者：

Wu, Qing-Yuan ^{[1
,2
]}

Meng, Zhe ^{[1
,2
]}

Yang, Jia-Zhi ^{[1
,2
]}

Zhang, An-Ning ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Sch Phys, Ctr Quantum Technol Res, Beijing 100081, Peoples R China

[2] Beijing Inst Technol, Sch Phys, Key Lab Adv Optoelect Quantum Architecture & Meas, Beijing 100081, Peoples R China

来源：

NPJ QUANTUM INFORMATION | 2022年 / 8卷 / 01期

关键词：

ENTANGLEMENT;

D O I：

10.1038/s41534-022-00561-z

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Holographic metasurfaces and their applications have garnered significant attention owing to their role in polarization control. In this study, we demonstrate that the quantum properties of holographic metasurfaces can be obtained by quantum state tomography (QST) and quantum process tomography (QPT). We perform QST to obtain the experimental output states by extracting information from holograms encoded on the holographic metasurface, and develop a QPT-based method to estimate the quantum process of the metasurface. The theoretical output states derived from the estimated quantum process are in good agreement with the experimental output states, proving the effectiveness of our method. Our work not only provides theoretical and experimental analysis for understanding the quantum properties of holographic metasurfaces, but also paves the way for the application of holographic metasurfaces in quantum field.

引用

页数：6