Quantum Secure Direct Communication with Private Dense Coding Using a

Wu, Jiawei1,2,3; Long, Gui-Lu1,2,4,5,6; Hayashi, Masahito3,7,8,9

2022-06-06

10.1103/PhysRevApplied.17.064011

Physical Review Applied   影响因子和分区

2331-7019

We study quantum secure direct communication using a general preshared quantum state and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary operation on the preshared state to encode her message, and the set of allowed unitaries forms a group. To decode the message, Bob is allowed to apply a measurement across his system and the system he receives. In the worst scenario, we guarantee that Eve obtains no information for the message even when Eve accesses the joint system between the system that she intercepts and her original system of the preshared state. For a practical application, we propose a concrete protocol and derive an upper bound of information leakage in the finite-length setting. We also discuss how to apply our scenario to the case with discrete Weyl-Heisenberg representation when the preshared state is unknown.

SCI ; EI

英语

其他

Guangdong Provincial Key Laboratory[2019B121203002] ; National Natural Science Foundation of China[62171212]

Physics

Physics, Applied

WOS:000813238900002

AMER PHYSICAL SOC

20222512256173

Quantum communication ; Quantum theory

Telecommunication; Radar, Radio and Television:716 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
4.Beijing Natl Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China
5.Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China
6.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
7.Int Quantum Acad SIQA, Shenzhen 518048, Peoples R China
8.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
9.Nagoya Univ, Grad Sch Math, Nagoya, Aichi 4648602, Japan

Wu, Jiawei,Long, Gui-Lu,Hayashi, Masahito. Quantum Secure Direct Communication with Private Dense Coding Using a[J]. Physical Review Applied,2022,17(6).

Wu, Jiawei,Long, Gui-Lu,&Hayashi, Masahito.(2022).Quantum Secure Direct Communication with Private Dense Coding Using a.Physical Review Applied,17(6).

Wu, Jiawei,et al."Quantum Secure Direct Communication with Private Dense Coding Using a".Physical Review Applied 17.6(2022).