Quantum secure direct communication with cluster states

2010 ◽  
Vol 53 (7) ◽  
pp. 1271-1275 ◽  
Author(s):  
WeiFeng Cao ◽  
YuGuang Yang ◽  
QiaoYan Wen
Keyword(s):  
Quantum Secure Direct Communication ◽  
Cluster States ◽  
Direct Communication

QUANTUM SECURE DIRECT COMMUNICATION WITH QUANTUM IDENTIFICATION

2012 ◽  
Vol 10 (01) ◽  
pp. 1250008 ◽  
Author(s):  
ZHI-WEI SUN ◽  
RUI-GANG DU ◽  
DONG-YANG LONG
Keyword(s):  
High Efficiency ◽  
Quantum Secure Direct Communication ◽  
Secret Message ◽  
Noisy Environments ◽  
Cluster States ◽  
Direct Communication ◽  
Additional Information ◽  
Two Photon ◽  
Transmission Of Information ◽  
Quantum Identification

A one-way quantum secure direct communication protocol with quantum identification utilizing two-photon three-qubit linear cluster states is proposed. The protocol can be used to transmit a secret message and identify user's identification simultaneously. The transmission of information is instantaneous, i.e. the information can be decoded during the transmission and no final transmission of additional information is needed. We prove its robustness against attacks: Any attempt of an adversary to obtain information (and even a bit of information) necessarily induces some errors that the legitimate parties could notice, even in noisy environments. Moreover, this protocol achieves a high efficiency and source capacity since more qubits can be encoded on the same photon.

An efficient controlled quantum secure direct communication and authentication by using four particle cluster states

2017 ◽  
Vol 15 (01) ◽  
pp. 1750002 ◽  
Author(s):  
Milad Nanvakenari ◽  
Monireh Houshmand
Keyword(s):  
Cluster State ◽  
Quantum Secure Direct Communication ◽  
Identity Authentication ◽  
Secret Message ◽  
Particle Cluster ◽  
Cluster States ◽  
Present Scheme ◽  
Direct Communication ◽  
Eavesdropping Detection ◽  
Base Identity

In this paper, a three-party controlled quantum secure direct communication and authentication (QSDCA) protocol is proposed by using four particle cluster states via a quantum one-time pad and local unitary operations. In the present scheme, only under the permission of the controller, the sender and the receiver can implement secure direct communication successfully. But under any circumstances, Charlie cannot obtain the secret message. Eavesdropping detection and identity authentication are achieved with the help of the previously shared reusable base identity strings of users. This protocol is unconditionally secure in both ideal and practical noisy cases. In one transmission, a qubit of each four particle cluster state is used as controller’s permission and the same qubit with another qubit are used to recover two classical bits of information. In the proposed scheme, the efficiency is improved compared with the previous works.

Controlled Quantum Secure Direct Communication by Using Five-particle Cluster States

2014 ◽  
Vol 43 (1) ◽  
pp. 127001
Author(s):  
聂义友 NIE Yi-you ◽  
徐玮 XU Wei ◽  
章勤男 ZHANG Qin-nan ◽  
李渊华 LI Yuan-hua ◽  
桑明煌 SANG Ming-huang
Keyword(s):  
Quantum Secure Direct Communication ◽  
Particle Cluster ◽  
Cluster States ◽  
Direct Communication
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