黑碳与非吸收性气溶胶的不同混合方式对量子传输信道的影响  

Effects of Different Mixing Modes of Black Carbon and Non-Absorbent Aerosol on Quantum Transmission Channel

作　　者：张秀再[1,2] 翟梦思 董千恒 周丽娟 Zhang Xiuzai;Zhai Mengsi;Dong Qianheng;Zhou Lijuan(Jiangsu Province Atmospheric Environment and Equipment Technology Collaborative Innovation Center,Nanjing University of Information Science&Technology,Nanjing 210044,Jiangsu,China;School of Electronics and Information,Nanjing University of Information Science&Technology,Nanjing 210044,Jiangsu,China)

机构地区：[1]南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏南京210044 [2]南京信息工程大学电子与信息工程学院,江苏南京210044

出　　处：《光学学报》2022年第12期238-247,共10页Acta Optica Sinica

基　　金：国家自然科学基金青年科学基金(11504176,61601230);江苏省自然科学基金青年基金(BK20141004)。

摘　　要：为了研究黑碳与非吸收性气溶胶的不同混合方式对量子信道参数的影响,根据黑碳与硫酸盐、有机碳气溶胶在Core-shell和Maxwell-Garnett两种混合模型下的消光系数,建立信道衰减模型并进行仿真分析,研究混合气溶胶粒子中黑碳体积分数和信道关联因子与双泡利信道、关联比特翻转信道参数的数据关系,分析黑碳体积分数与量子信号传输距离对密钥安全传输率的影响并进行数据仿真。仿真结果表明:在两种混合状态下,随着黑碳体积分数的增加,光量子能量的衰减均呈现逐渐增大的趋势,而量子安全密钥产生率则随着黑碳体积分数的增大而逐渐减小;在不同内容和模型下,信道关联因子的增大对信道隐形传态保真度有着积极的影响,而黑碳体积分数的增大则会降低信道隐形传态的保真度。In order to study the influence of different mixing methods of black carbon and non-absorbent aerosol on quantum channel parameters,according to the extinction coefficient of black carbon and sulfate and organic carbon aerosols under the mixed models of Core-shell and Maxwell-Garnett,the channel attenuation model is established and simulated,and the data relationship between black carbon volume fraction/channel correlation factor in mixed aerosol particles and double Pauli channel/associated bit flip channel parameters is studied.The influence of black carbon volume fraction and quantum signal transmission distance on the key security transmission rate is analyzed and the data simulation is carried out.The simulation results show that in the two mixed states,the attenuation of light quantum energy increases gradually with the increase of black carbon volume fraction,while the quantum security key generation rate decreases with the increase of black carbon volume fraction.Under different contents and models,the increase of channel correlation factor has a positive impact on the fidelity of channel teleportation,while the increase of the volume fraction of black carbon will weaken the fidelity of channel teleportation.

关 键 词：量子光学 量子通信 内混合气溶胶 链路衰减 信道保真度 密钥产生率 

分 类 号：TN929.1[电子电信—通信与信息系统] O431.2[电子电信—信息与通信工程]