Quantum Voting Machine Encoded with Microwave Photons

张钰 ¹杨垂平 ²苏奇平 ²康逸豪 ²郑文 ¹李邵雄 ¹于扬³

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作者信息

1. National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210093,China;Shishan Laboratory,Nanjing University,Suzhou 215163,China;Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China
2. Department of Physics,Hangzhou Normal University,Hangzhou 310036,China
3. National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210093,China;Shishan Laboratory,Nanjing University,Suzhou 215163,China;Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Hefei National Laboratory,Hefei 230088,China
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Abstract

We propose a simple quantum voting machine using microwave photon qubit encoding,based on a setup comprising multiple microwave cavities and a coupled superconducting flux qutrit.This approach primarily relies on a multi-control single-target quantum phase gate.The scheme offers operational simplicity,requiring only a single step,while ensuring verifiability through the measurement of a single qubit phase information to obtain the voting results.It provides voter anonymity,as the voting outcome is solely tied to the total number of affirmative votes.Our quantum voting machine also has scalability in terms of the number of voters.Additionally,the physical realization of the quantum voting machine is general and not limited to circuit quantum electrodynamics.Quantum voting machine can be implemented as long as the multi-control single-phase quantum phase gate is realized in other physical systems.Numerical simulations indicate the feasibility of this quantum voting machine within the current quantum technology.

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基金项目

National Natural Science Foundation of China(12074179)

National Natural Science Foundation of China(U21A20436)

Innovation Program for Quantum Science and Technology(2021ZD0301702)

Natural Science Foundation of Jiangsu Province,China(BE2021015-1)

Natural Science Foundation of Jiangsu Province,China(BK20232002)

Jiangsu Funding Program for Excellent Postdoctoral Talent(20220ZB16)

Natural Science Foundation of Shandong Province,China(ZR2023LZH002)

出版年

2024

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDCSCDEI

影响因子：0.515

ISSN：0256-307X

参考文献量42

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