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Superradiance at the localization-delocalization crossover in tubular chlorosomes

AuthorsMolina, Rafael A. ; Benito-Matías, E. ; Somoza, A. D.; Chen, L.; Zhao, Y.
Issue Date23-Feb-2016
PublisherAmerican Physical Society
CitationPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics 93: 022414 (2016)
AbstractWe study the effect of disorder on spectral properties of tubular chlorosomes in green sulfur bacteria Cf. aurantiacus. Employing a Frenkel-exciton Hamiltonian with diagonal and off-diagonal disorder consistent with spectral and structural studies, we analyze excitonic localization and spectral statistics of the chlorosomes. A size-dependent localization-delocalization crossover is found to occur as a function of the excitonic energy. The crossover energy region coincides with the more optically active states with maximized superradiance and is, consequently, more conducive for energy transfer. ©2016 American Physical Society
Description7 pags., 5 figs., 1 tab.
Publisher version (URL)https://doi.org/10.1103/PhysRevE.93.022414
Identifiersdoi: 10.1103/PhysRevE.93.022414
issn: 1550-2376
Appears in Collections:(CFMAC-IEM) Artículos
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