2004/03/30 by Ziyan Zhang, Z. J. Zhang, Zhang, Z. J. +3
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #DNA and Biological Computing #graph theory and CDMA systems #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0403215
arxiv created 2004/03/30 · arxiv updated 2009/12/01
In light of Deng-Long-Liu's two-step secret direct communication protocol using the Einstein-Podolsky-Rosen pair block [Phys. Rev. A \bf 68, 042317 (2003)], by introducing additional local operations for encoding, we propose a brand-new secure direct communication protocol, in which two legitimate users can simultaneously transmit their different secret messages to each other in a set of quantum communication device.