Energetic disorder and exciton states of individual molecular rings

Photosynthetic complex LH2 – Absorption and steady state fluorescence spectra

“…In addition, spectral lines (absorption OD(u) and fluorescence FL(u)) for full Hamiltonian model are slightly wider in comparison with nearest neighbour approximation one at low temperature. Spectral line splitting is also visible in case of static disorder in local excitation energies [36] but for double strength D z 2D J , which is in agreement with our previous results [22,43].…”

“…Comparison of our previous results [43] with experimental data of Hofmann et al [44] gives the possible strength of the uncorre- To characterize localization of exciton states, the thermally averaged participation ratio 〈PR〉 (Eq. (20)) and the participation ratios PR a (a ¼ 1,…,18) (Eq.…”

“…It could be caused by another choice of static and dynamic disorder strengths. Our choice of static disorder strength is connected with our previous calculations of the distributions of energetic separation E(k ¼ ±1) and relative orientation of transition-dipole moments [43]. Strength of dynamic disorder we chose in agreement with results of our fluorescence depolarization simulations [22,24,25].…”