2003/04/04 by Qing-yu Cai, Cai, Qing-yu
Computer Science · Engineering · Physics and Astronomy · #Cooperative Communication and Network Coding #Wireless Communication Security Techniques #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0304033
arxiv created 2003/04/25 · arxiv updated 2009/12/01
We show an improved ping-pong protocol which is based on the protocol showed by Kim Bostrom and Timo Felbinger [Phys. Rev. Lett. 89, 187902 (2002); quant-ph/0209040]. We show that our protocol is asymptotically secure key distribution and quasisecure direct communication using a single photon resource. And this protocol can be can be carried out with great efficiency and speed using today's technology.