Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities
As an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance bo...
| 出版年: | Entropy |
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| 主要な著者: | , , , , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
MDPI AG
2021-06-01
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| 主題: | |
| オンライン･アクセス: | https://www.mdpi.com/1099-4300/23/6/716 |
| _version_ | 1851843614337925120 |
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| author | Zhao-Ying Jia Jie Gu Bing-Hong Li Hua-Lei Yin Zeng-Bing Chen |
| author_facet | Zhao-Ying Jia Jie Gu Bing-Hong Li Hua-Lei Yin Zeng-Bing Chen |
| author_sort | Zhao-Ying Jia |
| collection | DOAJ |
| container_title | Entropy |
| description | As an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance boundary. However, this original protocol has a poor performance over channels with asymmetric transmittances. To make it more practical, we present a differential phase shift quantum secret sharing protocol with asymmetric source intensities and give the security proof of our protocol against individual attacks. Taking finite-key effects into account, our asymmetric protocol can theoretically obtain the key rate two orders of magnitude higher than that of the original protocol when the difference in length between Alice’s channel and Bob’s is fixed at 14 km. Moreover, our protocol can provide a high key rate even when the difference is quite large and has great robustness against finite-key effects. Therefore, our work is meaningful for the real-life applications of quantum secret sharing. |
| format | Article |
| id | doaj-art-e7e6243cddeb4a67843808aa6a97d3d9 |
| institution | Directory of Open Access Journals |
| issn | 1099-4300 |
| language | English |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-e7e6243cddeb4a67843808aa6a97d3d92025-08-19T22:27:16ZengMDPI AGEntropy1099-43002021-06-0123671610.3390/e23060716Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source IntensitiesZhao-Ying Jia0Jie Gu1Bing-Hong Li2Hua-Lei Yin3Zeng-Bing Chen4National Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, ChinaNational Laboratory of Solid State Microstructures, School of Physics and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, ChinaAs an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance boundary. However, this original protocol has a poor performance over channels with asymmetric transmittances. To make it more practical, we present a differential phase shift quantum secret sharing protocol with asymmetric source intensities and give the security proof of our protocol against individual attacks. Taking finite-key effects into account, our asymmetric protocol can theoretically obtain the key rate two orders of magnitude higher than that of the original protocol when the difference in length between Alice’s channel and Bob’s is fixed at 14 km. Moreover, our protocol can provide a high key rate even when the difference is quite large and has great robustness against finite-key effects. Therefore, our work is meaningful for the real-life applications of quantum secret sharing.https://www.mdpi.com/1099-4300/23/6/716quantum cryptographyquantum secret sharingdifferential phase shift |
| spellingShingle | Zhao-Ying Jia Jie Gu Bing-Hong Li Hua-Lei Yin Zeng-Bing Chen Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities quantum cryptography quantum secret sharing differential phase shift |
| title | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
| title_full | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
| title_fullStr | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
| title_full_unstemmed | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
| title_short | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
| title_sort | differential phase shift quantum secret sharing using a twin field with asymmetric source intensities |
| topic | quantum cryptography quantum secret sharing differential phase shift |
| url | https://www.mdpi.com/1099-4300/23/6/716 |
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