Dynamics of Global Entanglement under Decoherence
arXiv:0805.1694 · doi:10.1103/PhysRevA.77.062322
Abstract
We investigate the dynamics of global entanglement, the Meyer-Wallach measure, under decoherence, analytically. We study two important class of multi-partite entangled states, the Greenberger-Horne-Zeilinger and the 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 W state, consistent with previous studies.
5 pages and 5 figures