Abstract
Recent phase-locked femtosecond double-pump experiments on individual light-harvesting complexes LH2 of purple bacteria at ambient temperature revealed undamped oscillatory responses on a time scale of at least 400 fs [ Hildner et al. Science 2013, 340, 1448 ]. Using an excitonic Hamiltonian for LH2 available in the literature, we simulate these signals numerically by a method that treats excitonic couplings and exciton-phonon couplings in a nonperturbative manner. The simulations provide novel insights into the origin of coherent dynamics in individual LH2 complexes.
Original language | English |
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Pages (from-to) | 4488-4494 |
Number of pages | 7 |
Journal | Journal of Physical Chemistry Letters |
Volume | 9 |
Issue number | 16 |
DOIs | |
State | Published - 16 Aug 2018 |