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

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

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D. L. Zhou, B. Zeng, J. S. Tang, Z. Xu, L. You. 2005-09-30. N-qubit entanglement via the $J_y^2$-type collective interaction. https://doi.org/10.1016/j.physleta.2005.07.016

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