N-qubit entanglement via the $J_y^2$-type collective interaction

D. L. Zhou; B. Zeng; J. S. Tang; Z. Xu; L. You

doi:10.1016/j.physleta.2005.07.016

paper

N-qubit entanglement via the $J_{y}^{2}$ -type collective interaction

arXiv:quant-ph/0509218 · doi:10.1016/j.physleta.2005.07.016

Abstract

We investigate quantum correlations of the $N$ -qubit states via a collective pseudo-spin interaction ( $\propto J_{y}^{2}$ ) on arbitrary pure separable states for a given interval of time. Based on this dynamical generation of the $N$ -qubit maximal entangled states, a quantum secret sharing protocol with $N$ continuous classical secrets is developed.

12 pages, 3 figures

N-qubit entanglement via the Jy2​-type collective interaction

Abstract

N-qubit entanglement via the $J_{y}^{2}$ -type collective interaction