Deterministic quantum dense coding with cluster state in optical systems

2011 ◽  
Vol 284 (1) ◽  
pp. 510-514 ◽  
Author(s):  
Qing-Min Song ◽  
Bao-Long Fang ◽  
Liu Ye
2016 ◽  
Vol 16 (3&4) ◽  
pp. 271-290
Author(s):  
Parminder S. Bhatia

Theory of controlled tripartite quantum dense coding for the transmission of four-binary bits between two distinct locations is presented. The entanglement resource for this transmission is provided by a six-qubit cluster state. Theoretical detail of an encoder that can encode sixteen different operations and a four-bit binary decoder required for this transmission is discussed. We show that in the absence of availability of any four-state analyzer decoding can be reduced to single-particle and two-particle Bell-state measurements ( BSM ). In our scheme, Bell-state measurements ( BSM ) performed during decoding, result in Bell-pairs, which along with single-particle projections are used to unambiguously discriminate all sixteen encoding operations. Proposed experiment to verify theory of tripartite quantum dense coding scheme, using photonic entanglement, is also briefly discussed. Success probability of the scheme is determined. In addition, long-distance implementation of this tripartite quantum dense coding scheme is discussed. Fault-tolerant quantum repeaters used in this long-distance scheme are based on quantum errorcorrection, which is achieved with the aid of Calderbank-Shor-Steane ( CSS ) encoding.


2013 ◽  
Vol 52 (8) ◽  
pp. 2705-2713 ◽  
Author(s):  
Hua-Gui Zhu ◽  
Guo-qiang Huang ◽  
Cui-Lan Luo

2006 ◽  
Vol 16 (1) ◽  
pp. 38-41 ◽  
Author(s):  
Cheng Wei-Wen ◽  
Huang Yan-Xia ◽  
Liu Tang-Kun ◽  
Li Hong

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.


2018 ◽  
Vol 58 (2) ◽  
pp. 493-501 ◽  
Author(s):  
Xiao Zhao ◽  
Yong-Qiang Li ◽  
Liu-Yong Cheng ◽  
Guo-Hui Yang

2009 ◽  
Vol 07 (01) ◽  
pp. 307-312 ◽  
Author(s):  
LIU YE ◽  
JUAN HE

An experimentally feasible scheme for implementing quantum dense coding in cavity QED is proposed. In the scheme a W-class state can first be prepared by letting the atoms interact simultaneously with a highly detuned cavity mode. Then the states coded on this W-class state can be exactly distinguished by detecting atomic states. The scheme is insensitive to the cavity field, and the quantum dense coding can be realized in a simple way.


2018 ◽  
Vol 382 (26) ◽  
pp. 1709-1715 ◽  
Author(s):  
Saptarshi Roy ◽  
Titas Chanda ◽  
Tamoghna Das ◽  
Aditi Sen(De) ◽  
Ujjwal Sen

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