Secure quantum conversation through non-destructive discrimination of highly entangled multipartite states

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Published 9 October 2009 Europhysics Letters Association
, , Citation Sakshi Jain et al 2009 EPL 87 60008 DOI 10.1209/0295-5075/87/60008

0295-5075/87/6/60008

Abstract

"Quantum conversation" is a way in which two parties can communicate classical information with each other using entanglement as a shared resource. We present this scheme using a multipartite entangled state after describing its generation through appropriate circuit diagrams. We make use of a discrimination scheme which allows one to perform a measurement on the system without destroying its entanglement. We later prove that this scheme is secure in a noiseless and a lossless quantum channel.

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10.1209/0295-5075/87/60008