Multiparticle entanglement under the influence of decoherence
Quantum Physics
2008-12-10 v2 Mesoscale and Nanoscale Physics
Abstract
We present a method to determine the decay of multiparticle quantum correlations as quantified by the geometric measure of entanglement under the influence of decoherence. With this, we compare the robustness of entanglement in GHZ-, cluster-, W- and Dicke states of four qubits and show that the Dicke state is most robust. Finally, we determine the geometric measure analytically for decaying GHZ and cluster states of an arbitrary number of qubits.
Cite
@article{arxiv.0805.2873,
title = {Multiparticle entanglement under the influence of decoherence},
author = {O. Gühne and F. Bodoky and M. Blaauboer},
journal= {arXiv preprint arXiv:0805.2873},
year = {2008}
}
Comments
5 pages, 3 figures, v2: final version, to appear as a Rapid Communication in PRA