Multidimensional reconciliation protocol for continuous-variable quantum key agreement with polar coding
Continuous-variable quantum key distribution (CVQKD) ”1-7” allows two remote parties (Alice and Bob) to share a secret key,even in the presence of an eavesdropper (Eve) with unlimited computational power ”8-17”.While,a highly efficient reconciliation protocol ”18-21” is crucial in a CVQKD system,which can not only extract the errorless secret keys,but also provide a promising way to achieve a long distance CVQKD at a low signal-to-noise ratio (SNR).There are some practical reconciliation protocols ”18-21” for CVQKD systems,such as,sliced reconciliation protocol (SEC) ”18”,sign reconciliation protocol ”19”,and multidimensional reconciliation protocol (MR) ”21”.Compared with the others,MR utilized the algebraic properties of a multidimensional method,which did not require quantization or any other post-selection technique.
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the National Natural Science Foundation of ChinaGrant .61475075,and 61271238;the Postgraduate Research and Practice Innovation Program of Jiangsu ProvinceGrant KYCX17-0786
2018-10-23(万方平台首次上网日期,不代表论文的发表时间)
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