Quantum information processing attributes of J-aggregates

Details Quantum information processing attributes of J-aggregates Quantum information processing attributes of J-aggregates

2010-03-23

arxiv.org/abs/1003.4558v2

Physics

Quantum Physics

19 pages, 3 new figures added

Scientific paper

We examine the unique spectroscopic features which give rise to quantum information processing attributes of one-dimensional J-aggregate systems, and as revealed by entanglement measures such as the von Neumann entropy, Wootters concurrence and Wei-Goldbart geometric measure of entanglement. The effect of dispersion and resonance terms in the exciton-phonon interaction are analyzed using Green function formalism and present J-aggregate systems as robust channels for large scale energy propagation for a select range of parameters. We show that scaling of the third order optical response $\chi^{(3)}$ with exciton delocalization size provides an experimentally demonstrable measure of quantifying multipartite entanglement in J-aggregates.

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