Controlled-Xgate with cache function for one-way quantum computation

Abstract

One-way quantum computation by utilizing multipartite cluster states paves the way for the realization of universal quantum computation. However, quantum memory should be implemented in the practical systems to ensure the operations could be timed appropriately. A scheme of the controlled-$X$ gate with a cache function for one-way quantum computation is proposed here. Due to the generation of a hybrid cluster state based on the interaction of light-atoms, the atom stations will not only be treated as the submodes of cluster states, but also implement the function of quantum memory.