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Title

Creation and manipulation of entanglement in spin chains far from equilibrium

AuthorsGalve, Fernando ; Zueco, David; Reuther, Georg M.; Kohler, Sigmund ; Hänggi, Peter
Issue Date2010
PublisherSpringer
CitationEuropean Physical Journal - Special Topics 180(1): 237-246 (2010)
AbstractWe 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.
Description10 páginas, 6 figuras.-- El pdf del artículo es la versión pre-print: arXiv:1003.4846v1
Publisher version (URL)http://dx.doi.org/0.1140/epjst/e2010-01220-5
URIhttp://hdl.handle.net/10261/44820
DOI0.1140/epjst/e2010-01220-5
ISSN1951-6355
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