关键词: 量子计算, 盲量子计算, 量子纠缠, 可信任中心, 量子网络, 无条件安全

Abstract: To promote the execution efficiency of the blind quantum computation protocol and to reduce the time clients occupy on the quantum server, this study proposes a two-server blind quantum computation protocol based on Bell-and W-state entanglement swapping, as well as the actual network environment. According to this protocol, a computation task is divided into two parts, which can be accomplished by Bob1 and Bob2 to follow single-server blind quantum computation procedures, respectively. Compared with the single-server BQC, this protocol does not increase extra input in quantum server resources, because the preparation of Brick word State quantum bits for the construction of two servers can be achieved by a single quantum computer and following one preparation process. The proposed protocol makes complete classic realization at the client’s terminal to reality and is unconditionally safe.

Key words: quantum computing, blind quantum computation, entanglement swapping, trusted center；quantum network, unconditional security