Secure Direct Communication based on Ping-pong Protocol

Details Secure Direct Communication based on Ping-pong Protocol Secure Direct Communication based on Ping-pong Protocol

2007-07-06

arxiv.org/abs/0707.0972v1

Physics

Quantum Physics

11 pages, 3 figures, 1 table

Scientific paper

Communication security with quantum key distribution has been one of the important features of quantum information theory. A novel concept of secured direct communication has been the next step forward without the need to establish any shared secret key. The present paper is based on the ping-pong protocol with three particle GHZ state as the initial state where the receiver can simultaneously receive information from two parties. Possible eavesdropping on the travelling particle has been examined.

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