{"title":"利用预传单光子源提高了与参考帧无关的测量设备无关的量子密钥分配的性能","authors":"Ling Zhou, Zhenhua Li, Jipeng Wang, Zhongqi Sun, Yue Li, Haiqiang Ma","doi":"10.1140/epjd/s10053-023-00737-y","DOIUrl":null,"url":null,"abstract":"<div><p>The performance degradation of reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) protocol caused by the finite key size effect impedes its practical implementation. The protocol utilizes the double-scanning method, which makes it possible to precisely estimate both the counts of single-photon pairs and the phase-flip error. This method effectively counteracts the statistical fluctuation brought on by the finite key size effect. Based on this method, we propose a scheme in this work that substitutes heralded single-photon sources (HSPS) for weak coherent sources (WCS), and we compare the performance of the two schemes by calculating the key rate. The RFI-MDI-QKD using HSPS, according to the results of the simulation, has a lower key rate than the RFI-MDI-QKD using WCS, but it also has a longer transmission distance and a more noticeable improvement in transmission distance at larger rotation angles. Thus, we demonstrate that the RFI-MDI-QKD protocol, based on the double-scanning method and using HSPS, has promising future application potential.</p></div>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"77 8","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2023-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Improve the performance of reference-frame-independent measurement-device-independent quantum key distribution with heralded single-photon sources\",\"authors\":\"Ling Zhou, Zhenhua Li, Jipeng Wang, Zhongqi Sun, Yue Li, Haiqiang Ma\",\"doi\":\"10.1140/epjd/s10053-023-00737-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The performance degradation of reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) protocol caused by the finite key size effect impedes its practical implementation. The protocol utilizes the double-scanning method, which makes it possible to precisely estimate both the counts of single-photon pairs and the phase-flip error. This method effectively counteracts the statistical fluctuation brought on by the finite key size effect. Based on this method, we propose a scheme in this work that substitutes heralded single-photon sources (HSPS) for weak coherent sources (WCS), and we compare the performance of the two schemes by calculating the key rate. The RFI-MDI-QKD using HSPS, according to the results of the simulation, has a lower key rate than the RFI-MDI-QKD using WCS, but it also has a longer transmission distance and a more noticeable improvement in transmission distance at larger rotation angles. Thus, we demonstrate that the RFI-MDI-QKD protocol, based on the double-scanning method and using HSPS, has promising future application potential.</p></div>\",\"PeriodicalId\":789,\"journal\":{\"name\":\"The European Physical Journal D\",\"volume\":\"77 8\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2023-08-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The European Physical Journal D\",\"FirstCategoryId\":\"4\",\"ListUrlMain\":\"https://link.springer.com/article/10.1140/epjd/s10053-023-00737-y\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal D","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjd/s10053-023-00737-y","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
Improve the performance of reference-frame-independent measurement-device-independent quantum key distribution with heralded single-photon sources
The performance degradation of reference-frame-independent measurement-device-independent quantum key distribution (RFI-MDI-QKD) protocol caused by the finite key size effect impedes its practical implementation. The protocol utilizes the double-scanning method, which makes it possible to precisely estimate both the counts of single-photon pairs and the phase-flip error. This method effectively counteracts the statistical fluctuation brought on by the finite key size effect. Based on this method, we propose a scheme in this work that substitutes heralded single-photon sources (HSPS) for weak coherent sources (WCS), and we compare the performance of the two schemes by calculating the key rate. The RFI-MDI-QKD using HSPS, according to the results of the simulation, has a lower key rate than the RFI-MDI-QKD using WCS, but it also has a longer transmission distance and a more noticeable improvement in transmission distance at larger rotation angles. Thus, we demonstrate that the RFI-MDI-QKD protocol, based on the double-scanning method and using HSPS, has promising future application potential.
期刊介绍：
The European Physical Journal D (EPJ D) presents new and original research results in:
Atomic Physics;
Molecular Physics and Chemical Physics;
Atomic and Molecular Collisions;
Clusters and Nanostructures;
Plasma Physics;
Laser Cooling and Quantum Gas;
Nonlinear Dynamics;
Optical Physics;
Quantum Optics and Quantum Information;
Ultraintense and Ultrashort Laser Fields.
The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.
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