580 citations · 586 across the 11 of their papers we have counts for
6 papers · 1 filter
Economically Improving Message-Unilaterally-Transmitted Quantum Secure Direct Communication to Realize Two-Way Communication
Zhan-jun Zhang, Zhong-xiao Man, Yong Li
We present a subtle idea to economically improve message-unilaterally-transmitted quantum secure direct communication (QSDC) protocols to realize two-way secure direct communicatio…
Less eavesdropping losses induce more eavesdropping information gain
Zhanjun Zhang, Zhongxiao Man, Yong Li
The eavesdropping scheme proposed by Wójcik [Phys. Rev. Lett. {\bf 90},157901(2003)] on the quantum communication protocol of Boström and Felbinger [Phys. Rev. Lett. {\bf 89}, 1879…
Deterministic Secure Direct Bidirectional Communication Protocol
Zhanjun Zhang
In this letter a deterministic secure direct bidirectional communication protocol is proposed by using the quantum entanglement and local unitary operations on one photon of the Ei…
Mutual information, bit error rate and security in Wójcik's scheme
Zhanjun Zhang
In this paper the correct calculations of the mutual information of the whole transmission, the quantum bit error rate (QBER) are presented. Mistakes of the general conclusions rel…
Comment on 'Eavesdropping on the ping-pong communication protocol'
Zhanjun Zhang
This is a comment on PRL90(03)157901 by Antoni Wojcik (quant-ph/0211199)
Correct mutual information, quantum bit error rate and secure transmission efficiency in Wojcik's eavesdropping scheme on ping-pong protocol
Zhanjun Zhang
The wrong mutual information, quantum bit error rate and secure transmission efficiency in Wojcik's eavesdropping scheme [PRL90(03)157901]on ping-pong protocol have been pointed ou…