Dynamics of Global Entanglement under Decoherence

Details Dynamics of Global Entanglement under Decoherence Dynamics of Global Entanglement under Decoherence

2008-05-12

arxiv.org/abs/0805.1694v1

Phys.Rev.A 77 062322 (2008)

Physics

Quantum Physics

5 pages and 5 figures

Scientific paper

10.1103/PhysRevA.77.062322

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.

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