Development of Video Encryption Scheme Based on Quantum Controlled Dense Coding Using GHZ State for Smart Home Scenario

Author(s):  
Hongyang Ma ◽  
Yulin Ma ◽  
Wenbin Zhang ◽  
Xiaolong Zhao ◽  
Pengcheng Chu
2009 ◽  
Vol 07 (01) ◽  
pp. 365-372 ◽  
Author(s):  
CUI-LAN LUO ◽  
XIAO-FANG OUYANG

A scheme of realizing controlled dense coding via generalized measurement was presented. In this protocol, the supervisor can control the entanglement between the sender and the receiver and then the average amount of information transmitted from the sender to the receiver by only adjusting measurement angle θ. It is shown that when the quantum channel was a GHZ state, the entanglement and the average amount of information are determined by supervisor's measurement angle θ only; whereas when the quantum channel was a GHZ-class state, those are determined not only by supervisor's measurement angle θ but also the minimal coefficient of the GHZ-class state.


2009 ◽  
Vol 07 (06) ◽  
pp. 1241-1248 ◽  
Author(s):  
GUO-QIANG HUANG ◽  
CUI-LAN LUO

Two schemes for controlled dense coding with a extended GHZ state are investigated. In these protocols, the supervisor (Cliff) can control the average amount of information transmitted from the sender (Alice) to the receiver (Bob) only by adjusting his local measurement angle θ. It is shown that the results for the average amounts of information are unique from the different two schemes.


2015 ◽  
Vol 13 (05) ◽  
pp. 1550033 ◽  
Author(s):  
Sovik Roy ◽  
Biplab Ghosh

The paper presents a detailed study of controlled dense coding scheme for different types of three and four-particle states. It consists of GHZ state, GHZ type states, maximal slice (MS), state, 4-particle GHZ state and W class of states. It is shown that GHZ-type states can be used for controlled dense coding in a probabilistic sense. We have shown relations among parameter of GHZ type state, concurrence of the shared bipartite state by two parties with respect to GHZ type and Charlie's measurement angle θ. The GHZ states as a special case of MS states, depending on parameters, have also been considered here. We have seen that tripartite W state and quadripartite W state cannot be used in controlled dense coding whereas |Wn〉ABC states can be used probabilistically. Finally, we have investigated controlled dense coding scheme for tripartite qutrit states.


2007 ◽  
Vol 48 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Yang Rong-Can ◽  
Li Hong-Cai ◽  
Lin Xiu ◽  
Huang Zhi-Ping

2012 ◽  
Vol 10 (02) ◽  
pp. 1250022 ◽  
Author(s):  
GUO-QIANG HUANG ◽  
CUI-LAN LUO

Two schemes for controlled dense coding with a one-dimensional four-particle cluster state are investigated. In this protocol, the supervisor (Cliff) can control the channel and the average amount of information transmitted from the sender (Alice) to the receiver (Bob) by adjusting the local measurement angle θ. It is shown that the results for the average amounts of information are unique from the different two schemes.


2017 ◽  
Vol 56 (11) ◽  
pp. 3525-3533 ◽  
Author(s):  
Xue Yang ◽  
Ming-qiang Bai ◽  
Zhi-wen Mo

2005 ◽  
Author(s):  
Liping Guo ◽  
Mihaela van der Schaar ◽  
Debargha Mukherjee

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