Nonperturbative modeling of fifth-order coherent multidimensional spectroscopy in light harvesting antennas

Abstract

Recent advances in coherent multidimensional spectroscopy have boosted interest in exciton coherences in light harvesting complexes. We present nonperturbative calculations of two-dimensional (2D) electronic spectroscopy from a fifth-order phase-matching direction. The calculations show clear patterns that correspond to the electronic structure of one- and two-exciton manifolds of a Fenna-Matthews-Olsson light harvesting complex. Such signals can provide new information about the coherent properties of antenna pigment protein complexes. © IOP Publishing Ltd and Deutsche Physikalische Gesellschatf.