scholarly journals Robust quantum dialogue based on a shared auxiliary logical Bell state against collective noise

2015 ◽  
Vol 45 (4) ◽  
pp. 040301-040301 ◽  
Author(s):  
TianYu YE
Keyword(s):  
Bell State ◽  
Quantum Dialogue ◽  
Collective Noise

scholarly journals FAULT TOLERANT QUANTUM KEY DISTRIBUTION BASED ON QUANTUM DENSE CODING WITH COLLECTIVE NOISE

2009 ◽  
Vol 07 (08) ◽  
pp. 1479-1489 ◽  
Author(s):  
XI-HAN LI ◽  
BAO-KUI ZHAO ◽  
YU-BO SHENG ◽  
FU-GUO DENG ◽  
HONG-YU ZHOU
Keyword(s):  
Quantum Key Distribution ◽  
Fault Tolerant ◽  
Single Photon ◽  
Bell State ◽  
Key Distribution ◽  
Secret Message ◽  
Noisy Channel ◽  
Collective Noise ◽  
Dense Coding ◽  
Quantum Dense Coding

We present two robust quantum key distribution protocols against two kinds of collective noise, following some ideas in quantum dense coding. Three-qubit entangled states are used as quantum information carriers, two of which form the logical qubit, which is invariant with a special type of collective noise. The information is encoded on logical qubits with four unitary operations, which can be read out faithfully with Bell-state analysis on two physical qubits and a single-photon measurement on the other physical qubit, not three-photon joint measurements. Two bits of information are exchanged faithfully and securely by transmitting two physical qubits through a noisy channel. When the losses in the noisy channel is low, these protocols can be used to transmit a secret message directly in principle.

Fault tolerant controlled quantum dialogue against collective noise

2020 ◽  
Vol 29 (1) ◽  
pp. 010304 ◽  
Author(s):  
Li-Wei Chang ◽  
Yu-Qing Zhang ◽  
Xiao-Xiong Tian ◽  
Yu-Hua Qian ◽  
Shi-Hui Zheng
Keyword(s):  
Fault Tolerant ◽  
Quantum Dialogue ◽  
Collective Noise

Quantum dialogue protocols immune to collective noise

2012 ◽  
Vol 12 (6) ◽  
pp. 2131-2142 ◽  
Author(s):  
Chun-Wei Yang ◽  
Tzonelih Hwang
Keyword(s):  
Quantum Dialogue ◽  
Collective Noise

Quantum dialogue protocols over collective noise using entanglement of GHZ state

2016 ◽  
Vol 15 (7) ◽  
pp. 2971-2991 ◽  
Author(s):  
Chih-Hung Chang ◽  
Chun-Wei Yang ◽  
Geng-Rong Hzu ◽  
Tzonelih Hwang ◽  
Shih-Hung Kao
Keyword(s):  
Ghz State ◽  
Quantum Dialogue ◽  
Collective Noise

Fault tolerant quantum dialogue protocol over a collective noise channel

2019 ◽  
Vol 73 (3) ◽  
Author(s):  
Ming-Hui Zhang ◽  
Zheng-Wen Cao ◽  
Jin-Ye Peng ◽  
Geng Chai
Keyword(s):  
Fault Tolerant ◽  
Quantum Dialogue ◽  
Collective Noise

Cryptanalysis and improvement of the robust quantum dialogue protocols based on the entanglement swapping between any two logical Bell states and the shared auxiliary logical Bell state

2019 ◽  
Vol 34 (29) ◽  
pp. 1950241 ◽  
Author(s):  
Zhihao Liu ◽  
Hanwu Chen
Keyword(s):  
Quantum Communication ◽  
Communication Protocol ◽  
Information Leakage ◽  
Bell State ◽  
Entanglement Swapping ◽  
Bell States ◽  
Quantum Dialogue ◽  
Collective Rotation ◽  
Collective Rotation Noise ◽  
Quantum Communication Protocol

As we know, it does not allow that a secure quantum communication protocol has the information leakage problem. Unfortunately, we find that there is the information leakage problem in the two quantum dialogue (QD) protocols which are respectively based on entanglement swapping between two logical Bell states under the collective-dephasing noise and the collective-rotation noise. To mend this loophole, they are masterly improved. It is proven that the improved QD protocols are without information leakage problem. Incidentally, they have some other obvious advantages compared to the previous ones.

Sign in / Sign up

Export Citation Format

Share Document