Compact implementation of high-dimensional mutually partially unbiased bases protocol

doi:10.1088/2058-9565/acdd91

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	Compact implementation of high-dimensional mutually partially unbiased bases protocol
	Z. Chang, Y. Wang, Z. Guo, M. An, R. Qu, J. Jia, F. Wang and P. Zhang
	2023
发表期刊	Quantum Science and Technology
ISSN	20589565
卷号	8 期号:3
摘要	Transverse spatial mode of light is crucial in high-dimensional quantum key distribution (QKD). However, applications in realistic scenarios suffer from mode-dependent loss and the complexity of system, making it impractical to achieve higher-dimensional, longer-distance and low-cost communications. A mutually partially unbiased bases (MPUBs) protocol has been proposed to fundamentally eliminate the effects induced by mode-dependent loss for long propagation distances and limited sizes of apertures. Here, we demonstrate the first implementation of the MPUBs protocol in dimensions of d = 2 , 4 , 5 and 6. By performing a controlled unitary transformation, we can actively switch the measurement basis and enable a compact measurement system. In consequence, a higher encoding dimension is available under finite system resources, resulting in higher key rates and stronger noise resistance. Our work enhances the practicability of MPUBs protocol, and may promote the applications of high-dimensional QKD in quantum networks. © 2023 IOP Publishing Ltd
DOI	10.1088/2058-9565/acdd91
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67360
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Chang, Y. Wang, Z. Guo, M. An, R. Qu, J. Jia, F. Wang and P. Zhang. Compact implementation of high-dimensional mutually partially unbiased bases protocol[J]. Quantum Science and Technology,2023,8(3).
APA	Z. Chang, Y. Wang, Z. Guo, M. An, R. Qu, J. Jia, F. Wang and P. Zhang.(2023).Compact implementation of high-dimensional mutually partially unbiased bases protocol.Quantum Science and Technology,8(3).
MLA	Z. Chang, Y. Wang, Z. Guo, M. An, R. Qu, J. Jia, F. Wang and P. Zhang."Compact implementation of high-dimensional mutually partially unbiased bases protocol".Quantum Science and Technology 8.3(2023).

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