Dynamics of global entanglement under decoherence
Afshin Montakhab, Ali Asadian · Physical Review A · 2008
We investigate the dynamics of global entanglement, the Meyer-Wallach measure, under decoherence, analytically. We study two important classes of multipartite entangled states, the Greenberger-Horne-Zeilinger and the $\mathit{W}$ state. We obtain exact results for various models of system-environment interactions (decoherence). Our results shows distinctly different scaling behavior for these initially entangled states indicating a relative robustness of the $\mathit{W}$ state, consistent with previous studies.