Spectral properties of molecular oligomers. A non-Markovian quantum state diffusion approach

Abstract

Absorption spectra of small molecular aggregates (oligomers) are considered. The dipole-dipole interaction between the monomers leads to shifts of the oligomer spectra with respect to the monomer absorption. The line-shapes of monomer as well as oligomer absorption depend strongly on the coupling to vibrational modes. Using a recently developed approach [Roden et. al, PRL 103, 058301] we investigate the length dependence of spectra of one-dimensional aggregates for various values of the interaction strength between the monomers. It is demonstrated, that the present approach is well suited to describe the occurrence of the J- and H-bands.

References in corpus (6)

• Non-Markovian Quantum State Diffusion
• The non-Markovian stochastic Schrodinger equation for open systems
• The Holstein Polaron
• Non-Markovian Quantum Jumps in Excitonic Energy Transfer
• Influence of Complex Exciton-Phonon Coupling on Optical Absorption and Energy Transfer of Quantum Aggregates
• The J- and H-bands of dye aggregate spectra: Analysis of the coherent exciton scattering (CES) approximation

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• Non-Markovian Quantum State Diffusion for Temperature-Dependent Linear Spectra of Light Harvesting Aggregates
• Parametric Hierarchical Matrix Approach for the Wideband Optical Response of Large-Scale Molecular Aggregates