56 citations · 146 across the 21 of their papers we have counts for
4 papers · 2 filters
Exploring maximally multipartite entanglement of even n qubits with N-tangle
Xin-Wei Zha, Jian-Xia Qi, Yun-Guang Zhang
A necessary condition of the maximally multipartite entangled states (MMES) is given via n-tangle. The condition shows that the n-tangle equal zero for the four-, and eight-qubit o…
The relation between tangle and local unitary invariants for pure three and four-qubit states
Xin-wei Zha, Yun-Guang Zhang, Jian-Xia Qi +1
A new form of local unitary (LU) transformation invariant is given for multi-qubit states . The general relation between tangle and the LU transformation invariant of pure three an…
Channel matrix, measurement matrix and collapsed matrix in teleportation
Xin-Wei Zha, Jian-Xia Qi, Hai-Yang Song
In this paper, two kinds of coefficient matrixes (channel matrix, measurement matrix)associated with the pure state for teleportation are presented, the general relation among chan…
Simple forms of SLOCC equivalent four-qubit \c{hi} state
Xin-Wei Zha, Jian-Xia Qi, Yun-Guang Zhang
Some simple structure of maximally four-qubit state is presented. Using stochastic local operations and classical communication (SLOCC) invariants, it is can be shown those simple…