A novel quantum dialogue without information leakage based on single photons in both polarization and spatial-mode degrees of freedom

IF 1.5 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Modern Physics Letters A Pub Date : 2024-04-26 DOI:10.1142/s0217732324500354
Shen Rao
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Abstract

This paper puts forward a novel quantum dialogue (QD) protocol without information leakage based on single photons in both polarization and spatial-mode degrees of freedom. In this protocol, the receiver sends his private message to the sender in the way of quantum secure direct communication; and the receiver decodes out the private message of the sender with the help of auxiliary single photons in two degrees of freedom, double controlled-not (CNOT) operations and an auxiliary classical bit sequence sent from the sender. As a result, no information leakage takes place. Moreover, this protocol is proven to defeat the intercept-resend attack, the measure-resend attack, the entangle-measure attack and the Trojan horse attack from an outside eavesdropper. This protocol only employs single photons in two degrees of freedom as quantum resource and needs single-photon measurements. The qubit efficiency of this protocol is as high as 66.7%.

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基于偏振和空间模式自由度单光子的无信息泄露新型量子对话
本文基于偏振和空间模式两个自由度的单光子,提出了一种无信息泄露的新型量子对话(QD)协议。在该协议中,接收方以量子安全直接通信的方式向发送方发送自己的私人信息;接收方则借助发送方发送的两个自由度的辅助单光子、双受控不(CNOT)操作和辅助经典比特序列解码出发送方的私人信息。因此,不会发生信息泄露。此外,该协议还被证明可以击败外部窃听者的拦截-发送攻击、测量-发送攻击、纠缠-测量攻击和木马攻击。该协议仅使用两个自由度的单光子作为量子资源,并需要单光子测量。该协议的量子比特效率高达 66.7%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Modern Physics Letters A
Modern Physics Letters A 物理-物理:核物理
CiteScore
3.10
自引率
7.10%
发文量
186
审稿时长
3 months
期刊介绍: This letters journal, launched in 1986, consists of research papers covering current research developments in Gravitation, Cosmology, Astrophysics, Nuclear Physics, Particles and Fields, Accelerator physics, and Quantum Information. A Brief Review section has also been initiated with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.
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