Multiple-server Flexible Blind Quantum Computation in Networks

• DOI: 10.1007/s10773-016-2932-z
• Publication Date: 2016-02-11T02:31:59Z
• Authors: Xiaoqin Kong; Qin Li; Chunhui Wu; Fang Yu; Jinjun He; Zhiyuan Sun
• Keywords: 0103 physical sciences; 01 natural sciences

Blind quantum computation (BQC) can allow a client with limited quantum power to delegate his quantum computation to a powerful server and still keep his own data private. In this paper, we present a multiple-server flexible BQC protocol, where a client who only needs the ability of accessing qua ntum channels can delegate the computational task to a number of servers. Especially, the client’s quantum computation also can be achieved even when one or more delegated quantum servers break down in networks. In other words, when connections to certain quantum servers are lost, clients can adjust flexibly and delegate their quantum computation to other servers. Obviously it is trivial that the computation will be unsuccessful if all servers are interrupted.