Analysis of Quantum Security Direct Communication Protocol

Quantum security direct communication is based on quantum physics, combined with the classic communication theory .It become a new communication model, its transmission of information on the high efficiency, security has been more and more extensive attention. That is, since the beginning of this century, has been rapid developed. In this paper, we will describe several common quantum secure direct communication protocols and economic quantum secure direct communication network models theoretically. At the end of this paper, we will discuss and analyze the development and the future of quantum safety direct communication.