论文标题
量子安全对话和量子加密
Quantum secure dialogue with quantum encryption
论文作者
论文摘要
如何解决信息泄漏问题已成为量子对话的研究重点。在本文中，为了克服量子对话中的信息泄漏问题，通过利用量子加密的想法，提出了一种新颖的方法，用于在通信者之间私下共享初始量子状态，即量子加密共享。提出的协议使用EPR对作为私有量子密钥来加密和解密行进光子，可以在旋转后重复使用。由于量子加密共享，省略了有关初始量子状态状态状态的公开公告，因此要克服信息泄漏问题。该协议的信息理论效率几乎为100％，比以前的信息泄漏量子对话方案高得多。此外，提出的协议仅需要单光子测量，几乎使用单光子作为量子资源，因此实践中实现很方便。
How to solve the information leakage problem has become the research focus of quantum dialogue. In this paper, in order to overcome the information leakage problem in quantum dialogue, a novel approach for sharing the initial quantum state privately between communicators, i.e., quantum encryption sharing, is proposed by utilizing the idea of quantum encryption. The proposed protocol uses EPR pairs as the private quantum key to encrypt and decrypt the traveling photons, which can be repeatedly used after rotation. Due to quantum encryption sharing, the public announcement on the state of the initial quantum state is omitted, thus the information leakage problem is overcome. The information-theoretical efficiency of the proposed protocol is nearly 100%, much higher than previous information leakage resistant quantum dialogue protocols. Moreover, the proposed protocol only needs single-photon measurements and nearly uses single photons as quantum resource so that it is convenient to implement in practice.
