Programmable Coherent Linear Quantum Operations with High-Dimensional Optical Spatial Modes

被引：5

作者：

Li, Shikang ^{[1
]}

Zhang, Shan ^{[1
]}

Feng, Xue ^{[1
]}

Barnett, Stephen M. ^{[2
]}

Zhang, Wei ^{[1
]}

Cui, Kaiyu ^{[1
]}

Liu, Fang ^{[1
]}

Huang, Yidong ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Univ Glasgow, Sch Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

来源：

PHYSICAL REVIEW APPLIED | 2020年 / 14卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ENTANGLEMENT; GENERATION; STATES;

D O I：

10.1103/PhysRevApplied.14.024027

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A simple and flexible scheme for high-dimensional linear quantum operations is demonstrated on optical discrete spatial modes in the transverse plane. Quantum-state tomography via symmetric informationally complete positive-operator-valued measures and quantum Fourier transformation are implemented with dimensionality of 15. The statistical fidelity of symmetric informationally complete positive-operator-valued measures and the fidelity of quantum-state tomography are approximately 0.97 and up to 0.853, respectively, while the matrix fidelity of quantum Fourier transformation is 0.85. We believe that our approach has the potential for further exploration of high-dimensional spatial entanglement provided by spontaneous parametric down-conversion in nonlinear crystals.

引用

页数：15

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