Advanced materials research
High-Security Information Delay Scheme Based on Entangled States and Quantum Teleportation Technology
Qiu Yu Zhao, Xiao Yu Li
Abstract
In this paper we provide a high-capacity information delay scheme based on eantangled states and quantum teleportation technology. By sharing EPR (Einstain-Rosen-Podolsky) pairs, one person can give the other person some information which cannot be read until he or she lets the latter do. By virtue of quantum teleportation technology, no one can gain more information about the key than guessing the key at random. So the scheme can gain high security. The fundamental principles of quantum physics guarantee its unconditional security. When the one decides to let the other get the information, he or she need only to send some dictates through a public classical channel. So the scheme is easier to carry out and more robust in practice.