Quantum Secure Direct Communication: A Survey of Basic Principle and Recent Development

Publication Issue: 
Volume 39, Issue 2, 2018
Page No: 
Date Received: 
Wednesday, January 31, 2018
Authors' Name: 
Liuguo Yin
Dong Pan
Gui-Lu Long
Authors' Affiliation and Address: 
Tsinghua National Lab of Inform Sci & Tech, Beijing 100084, China
School of Inform Sci Techy, Tsinghua University, Beijing 100084, China
State Key Lab of Low-dim Quantum Physics and Department of Phys, Tsinghua University, Beijing 100084, China
Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, China
Quantum algorithm puts serious threats to information security. Quantum cryptography offers new solutions to this problem. As an important branch of quantum cryptography, quantum secure direct communication (QSDC) transmits secret information directly through a quantum channel. QSDC has no key, no ciphertext, and eliminates the known security loopholes in traditional secure communication. QSDC has changed the structure of secure communication fundamentally. Here we give a survey of QSDC in terms of principle and recent developments.
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