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International Journal of Theoretical Physics

, Volume 51, Issue 12, pp 3970–3977 | Cite as

Controlled Dense Coding with Generalized GHZ-Type State

  • Li-Shu Liu
  • Gang Chen
  • Song Rao
Article

Abstract

Two schemes for controlled dense coding with a generalized GHZ-type 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. The results for the average amounts of information are unique from the different two schemes.

Keywords

Controlled dense coding Generalized GHZ-type state Average amount of information Entanglement concentration Generalized measurement 

Notes

Acknowledgements

The authors are grateful to Song-Song Li for useful discussions that took place for the duration of this work.

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Department of PhysicsJiangxi Institute of EducationNanchangPeople’s Republic of China

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