Breaking fundamental limits of quantum entanglement distribution with quantum switch
To solve the problem of low efficiency of entanglement distribution caused by quantum information easily lost in quantum channels, quantum switch was proposed to transmit quantum information. Considering the information transmission capacity of quantum switch, an adaptive entanglement distribution p...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2024-10-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024177/ |
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| _version_ | 1841537123745792000 |
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| author | XU Ruiqing ZHOU Rigui LI Yaochong |
| author_facet | XU Ruiqing ZHOU Rigui LI Yaochong |
| author_sort | XU Ruiqing |
| collection | DOAJ |
| description | To solve the problem of low efficiency of entanglement distribution caused by quantum information easily lost in quantum channels, quantum switch was proposed to transmit quantum information. Considering the information transmission capacity of quantum switch, an adaptive entanglement distribution protocol with quantum switch was proposed and two-way entanglement distribution capacity with quantum switch was correspondingly derived. Then the tighter upper bound of channel capacity was derived by using teleportation simulation of quantum channel, the tighter lower bound was derived on the basis of Hash inequality. Simulation result shows that the lower bound of channel capacity in the proposed method generally surpasses the upper bound of which in the traditional quantum channel, providing a feasible thought for delivering high-rate quantum information. |
| format | Article |
| id | doaj-art-9e1bf78b73f243568b28abf746534c86 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-9e1bf78b73f243568b28abf746534c862025-01-14T08:46:05ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-10-0145698077077701Breaking fundamental limits of quantum entanglement distribution with quantum switchXU RuiqingZHOU RiguiLI YaochongTo solve the problem of low efficiency of entanglement distribution caused by quantum information easily lost in quantum channels, quantum switch was proposed to transmit quantum information. Considering the information transmission capacity of quantum switch, an adaptive entanglement distribution protocol with quantum switch was proposed and two-way entanglement distribution capacity with quantum switch was correspondingly derived. Then the tighter upper bound of channel capacity was derived by using teleportation simulation of quantum channel, the tighter lower bound was derived on the basis of Hash inequality. Simulation result shows that the lower bound of channel capacity in the proposed method generally surpasses the upper bound of which in the traditional quantum channel, providing a feasible thought for delivering high-rate quantum information.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024177/quantum switchtwo-way entanglement distribution capacityrelative entropy of entanglementcoherent information |
| spellingShingle | XU Ruiqing ZHOU Rigui LI Yaochong Breaking fundamental limits of quantum entanglement distribution with quantum switch Tongxin xuebao quantum switch two-way entanglement distribution capacity relative entropy of entanglement coherent information |
| title | Breaking fundamental limits of quantum entanglement distribution with quantum switch |
| title_full | Breaking fundamental limits of quantum entanglement distribution with quantum switch |
| title_fullStr | Breaking fundamental limits of quantum entanglement distribution with quantum switch |
| title_full_unstemmed | Breaking fundamental limits of quantum entanglement distribution with quantum switch |
| title_short | Breaking fundamental limits of quantum entanglement distribution with quantum switch |
| title_sort | breaking fundamental limits of quantum entanglement distribution with quantum switch |
| topic | quantum switch two-way entanglement distribution capacity relative entropy of entanglement coherent information |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024177/ |
| work_keys_str_mv | AT xuruiqing breakingfundamentallimitsofquantumentanglementdistributionwithquantumswitch AT zhourigui breakingfundamentallimitsofquantumentanglementdistributionwithquantumswitch AT liyaochong breakingfundamentallimitsofquantumentanglementdistributionwithquantumswitch |