Remote preparation of an arbitrary multi-qubit state via two-qubit entangled states

• DOI: 10.1007/s11128-017-1708-6
• Publication Date: 2017-09-11T12:02:14Z
• Authors: Jiahua Wei; Lei Shi; Lihua Ma; Yang Xue; Xuchun Zhuang; Qiaoyan Kang; Xuesong Li
• Keywords: One-way quantum computer

We propose a novel scheme for remote preparation of an arbitrary n-qubit state with the aid of an appropriate local $$2^n\times 2^n$$ unitary operation and n maximally entangled two-qubit states. The analytical expression of local unitary operation, which is constructed in the form of iterative process, is presented for the preparation of n-qubit state in detail. We obtain the total successful probabilities of the scheme in the general and special cases, respectively. The feasibility of our scheme in preparing remotely multi-qubit states is explicitly demonstrated by theoretical studies and concrete examples, and our results show that the novel proposal could enlarge the applied range of remote state preparation.