| 量子通信中的量子加密网络 |
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| 引用本文： | 田东平,舒远,种波. 量子通信中的量子加密网络[J]. 西安交通大学学报, 2002, 36(6): 643-646 |
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| 作者姓名： | 田东平 舒远 种波 |
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| 作者单位： | 西安交通大学理学院,710049,西安 |
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| 基金项目： | 陕西省自然科学基础研究计划资助项目 (2 0 0 0SL0 4 ) |
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| 摘 要： | 对量子密钥分发协议进行了研究，利用点－点量子密钥分发协议的基础上，基于传统密钥托管方案，推广到多点之间（即在网络环境下）的密钥分发协议，提出了多用户、多控制中心网络环境下量子密钥分发过程的实现方法。各中心节点只起到密钥存储、Bell基联合测量、对密钥进行接力传送的作用，密钥是动态产生的，各中心并不知道最终生成的密钥。
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| 关 键 词： | 量子信息 量子密码术 密钥分发 量子计算机 |
| 文章编号： | 0253-987X(2002)06-0643-04 |
| 修稿时间： | 2001-10-08 |
Quantum Cryptographic Network in Quantum Communication |
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| Tian Dongping,Shu Yuan,Zhong Bo. Quantum Cryptographic Network in Quantum Communication[J]. Journal of Xi'an Jiaotong University, 2002, 36(6): 643-646 |
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| Authors: | Tian Dongping Shu Yuan Zhong Bo |
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| Abstract: | The quantum cryptography with focus on quantum key distribution (QKD) schemes is investigated. A new quantum cryptographic network is proposed, based on the point to point QKD scheme and the classical third party key distribution scheme. This quantum cryptographic network possesses many users and many centers, in which users store quantum states in quantum memories, and each transmission center is connected by quantum channels to all the users. The final key is dynamically generated during the processing. Each center only performs the correct projections on the Bell states and cannot get any information of the final key. |
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| Keywords: | quantum information quantum cryptography key distribution quantum computer |
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