2010/03/23 by A. Thilagam, Thilagam, A.
Chemistry · Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #Quantum, superfluid, helium dynamics #Spectroscopy and Laser Applications #Spectroscopy and Quantum Chemical Studies #quant-ph
paper · pdf · doi:10.48550/arxiv.1003.4558
19 pages, 3 new figures added
openalex publication_date 2010/03/23 · arxiv created 2010/06/02 · arxiv updated 2010/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 χ(3) with exciton delocalization size provides an experimentally demonstrable measure of quantifying multipartite entanglement in J-aggregates.