We study entanglement dynamics of pure three-qubit Greenberger-Horne-Zeilinger-type (GHZ-type) entangled states when one, two or three qubits being subjected to general local noise. Employing a lower bound for three-qubit concurrence as an entanglement measure, we show that for some many-sided noisy channels the entanglement dynamics can be complete described by the evolution of the entangled states in single-sided channels.
@article{arxiv.1004.3880,
title = {Entanglement dynamics of three-qubit states in many-sided noisy channels},
author = {Michael Siomau},
journal= {arXiv preprint arXiv:1004.3880},
year = {2012}
}
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