%0 Journal Article
%T Creation and manipulation of entanglement in spin chains far from equilibrium
%A F. Galve
%A D. Zueco
%A G. M. Reuther
%A S. Kohler
%A P. H£¿nggi
%J Physics
%D 2010
%I arXiv
%R 10.1140/epjst/e2010-01220-5
%X We investigate creation, manipulation, and steering of entanglement in spin chains from the viewpoint of quantum communication between distant parties. We demonstrate how global parametric driving of the spin-spin coupling and/or local time-dependent Zeeman fields produce a large amount of entanglement between the first and the last spin of the chain. This occurs whenever the driving frequency meets a resonance condition, identified as "entanglement resonance". Our approach marks a promising step towards an efficient quantum state transfer or teleportation in solid state system. Following the reasoning of Zueco et al. [1], we propose generation and routing of multipartite entangled states by use of symmetric tree-like structures of spin chains. Furthermore, we study the effect of decoherence on the resulting spin entanglement between the corresponding terminal spins.
%U http://arxiv.org/abs/1003.4846v1