Quantum Voting Machine Encoded with Microwave Photons  

作　　者：张钰 杨垂平 苏奇平 康逸豪 郑文 李邵雄 于扬 Yu Zhang;Chuiping Yang;Qiping Su;Yihao Kang;Wen Zheng;Shaoxiong Li;Yang Yu(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;Department of Physics,Hangzhou Normal University,Hangzhou 310036,China;Hefei National Laboratory,Hefei 230088,China)

机构地区：[1]National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210093,China [2]Shishan Laboratory,Nanjing University,Suzhou 215163,China [3]Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China [4]Department of Physics,Hangzhou Normal University,Hangzhou 310036,China [5]Hefei National Laboratory,Hefei 230088,China

出　　处：《Chinese Physics Letters》2024年第7期12-17,共6页中国物理快报（英文版）

基　　金：partly supported by the National Natural Science Foundation of China (Grant Nos.12074179 and U21A20436);the Innovation Program for Quantum Science and Technology (Grant No.2021ZD0301702);the Natural Science Foundation of Jiangsu Province,China (Grant Nos.BE2021015-1 and BK20232002);the Jiangsu Funding Program for Excellent Postdoctoral Talent (Grant No.20220ZB16);the Natural Science Foundation of Shandong Province,China (Grant No.ZR2023LZH002)。

摘　　要：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.

关 键 词：QUANTUM MICROWAVE SIMPLICITY 

分 类 号：O413[理学—理论物理]