TITLE

Disentanglement of Three-qubit States Coupled to an XY Spin Chain with Multisite Interaction

AUTHOR(S)
Xie, Li-Jun; Zhang, Deng-Yu; Wang, Xin-Wen; Tang, Shi-Qing; Zhan, Xiao-Gui; Gao, Feng
PUB. DATE
October 2011
SOURCE
International Journal of Theoretical Physics;Oct2011, Vol. 50 Issue 10, p3096
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The entanglement dynamics of three-qubit states coupled to a general XY spin-chain with a three-site interaction environment is investigated. By using negativity as entanglement measure, we find that the entanglement evolution depends on not only the system-environment couplings but also the strength of three-site interaction. In the strong-coupling region, the three-site interaction can remarkably enhance the decay of the entanglement of three-qubit states. However, in the weak-coupling region, the process of disentanglement depends on the strength of the three-site interaction.
ACCESSION #
65101593

 

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