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International Journal of Theoretical Physics

, Volume 52, Issue 3, pp 750–756 | Cite as

Dense Coding via Local Measurement with Extended GHZ-Type State

  • Xiao-jie Yi
  • Jian-min Wang
Article

Abstract

Two schemes for dense coding via local measurement with an extended 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. It is shown that the results for the average amounts of information are unique from the different two schemes.

Keywords

Controlled dense coding Average amount of information Extended GHZ state Generalized measurement 

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  1. 1.College of Communication and ElectronJiangxi Science and Technology Normal UniversityNanchangP.R. China

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