,Practical security of continuous-variable quantum key distribution under finite-dimensional effect

来源 :中国物理B(英文版) | 被引量 : 0次 | 上传用户:jayxiandan001
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The well-known multi-dimensional reconciliation is an effective method used in the continuous-variable quantum key distribution in the long-distance and the low signal-to-noise-ratio scenarios.The virtual channel employed to exchange data is generally established by using a finite-dimensional rotation in the reconciliation procedure.In this paper,we found that the finite dimension of the multi-dimensional reconciliation inevitably leads to the mismatch of the signal-to-noise-ratio between the quantum channel and the virtual channel,which may be called the finite-dimension effect.Such an effect results in an overestimation on the secret key rate,and subsequently induces vital practical security loopholes.
其他文献
With the increasingly fierce market competition,manufacturing enterprises have to continuously improve their competitiveness through their collaboration and lab
设施栽培覆盖材料存在低透光率、低紫外线透过率的问题,而叶菜轻基质穴盘栽培,植株密度大,光合面积小,极易发生徒长,导致蔬菜商品性下降。紫外辐射对植物的生长发育、光合作用、形
草莓(Fragaria Ananassa Duchesne)为多年生温带草本果树,在国际水果市场一直备受青睐,有“水果皇后”之誉。但是由于草莓根系分布浅,叶面积较大,蒸腾旺盛,在干旱条件下容易造成水分
如何在教学中加强思想品德教育,是当前新课程实施过程中的课题之一.学校教育的根本任务是培养德、智、体全面发展的接班人.为了完成这一根本任务,使学生能真正地适应社会,在
The generation and propagation characteristics of bright spatial bound-soliton pairs (BSPs) are investigated under the diffusion effect in photovoltaic photoref
Based on the thermal network of the two-dimensional heterojunction bipolar transistors (HBTs) array,the thermal resistance matrix is presented,including the sel
We propose a new fractional two-dimensional triangle function combination discrete chaotic map (2D-TFCDM) with the discrete fractional difference.Moreover,the c
苹果是我国栽培面积最大的果树树种之一,西北黄土高原是我国苹果的最佳产区。但是目前该地区在多重因素的影响下土壤碱化不断加重,土壤pH值多在8.0以上,这成为影响果园肥料利用
本论文是在前人研究的基础上进行油茶总皂苷的分离与纯化工艺的研究。论文分四部分进行,如下:第一部分:采用于柱层析制备油茶皂苷对照品。将样品干法上样并用乙酸乙酯-甲醇-
基因靶向治疗(gene targeting therapy)可以特异性的杀伤肿瘤细胞,而不伤害正常细胞和组织.为了将这些转基因靶向投递到肿瘤细胞中,需要一个合适的载体.几种不同的菌种,如梭菌,沙门氏菌已经应用于临床试验,然而这些外来致病菌的毒性要超过他们本身的治疗意义.双歧杆菌(Bifidobacterium)是人类肠道中固有菌群,没有致病性,可以在肿瘤组织中特异性富集,这为肿瘤的治疗提供了基础.将自杀基因和免疫调节因子等导入双歧杆菌中,这些双歧杆菌在肿瘤中特异性的增殖,从而达到治疗肿瘤的目的.