8 papers
Return operator, cross Bell bases and protocol of teleportation of arbitrary multipartite qubit entanglement
Zai-Zhe Zhong
In this paper, we define the return operator, the cross product operator and the cross Bell bases. Using the cross Bell bases, we give a protocol of teleportation of arbitrary mult…
A simple scheme of teleportation of arbitrary multipartite qubit entanglement
Zai-Zhe Zhong
In this paper, we define a cross product operator and construct the cross Bell basis, by use this basis and Bell measurements we give a simple scheme of the teleportation of arbitr…
Convex rigid cover method in studies of quantum pure-states of many continuous variables
Zai-Zhe Zhong
In this paper we prove that every pure-state of N (N continuous variables corresponds to a pair of convex rigid covers (CRCs) structures in the continuous-d…
Quantum displacements
Zai-Zhe Zhong
In this paper, first we explain what are the `quantum displacements'. We establish a group of bases, which contains the coupled bases coupling a ququart and a bipartite qubit syste…
Four-level quantum teleportation, swapping and collective translations of multipartite quantum entanglement
Zai-Zhe Zhong
In this paper, an optimal scheme of four-level quantum teleportation and swapping of quantum entanglement is given. We construct a complete orthogonal basis of the bipartite ququad…
Criteria of partial separability of multipartite qubit mixed-states
Zai-Zhe Zhong
In this paper, we discuss the partial separability and its criteria problems of multipartite qubit mixed-states. First we strictly define what is the partial separability of a mult…