Signatures of three-exciton correlations in the coherent and incoherent nonlinear optical response of photosynthetic complexes

Details Signatures of three-exciton correlations in the coherent and incoherent nonlinear optical response of photosynthetic complexes Signatures of three-exciton correlations in the coherent and incoherent nonlinear optical response of photosynthetic complexes

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010njph...12f5046y&link_type=abstract

New Journal of Physics, Volume 12, Issue 6, pp. 065046 (2010).

Physics

2

Scientific paper

We present a simulation study of population and coherence relaxation dynamics in the third-order nonlinear responses of the Fenna-Matthews-Olson (FMO) light-harvesting photosynthetic complex. Three-exciton correlations have been incorporated and the relevant six-point relaxation superoperator is calculated to second order in coupling to a phonon bath. The dynamics of three-exciton correlations induce new peaks that are absent or much weaker when the three-exciton variables are factorized. Such features were observed in a recent experiment (Engel G S et al 2007 Nature 446 782-6).

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