Dresden 2014 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 19: Poster Session 1 (joint session with BP)
CPP 19.48: Poster
Dienstag, 1. April 2014, 09:30–13:00, P1
Hierarchy of stochastic pure state wavefunctions for open quantum systems — Daniel Süss1, Walter T. Strunz1, and •Alexander Eisfeld2 — 1TU Dresden — 2MPI-PKS
A method is presented to efficiently solve open quantum system problems with an non-Markovian structured environment. The approach is based on the Non-Markovian quantum state diffusion (NMQSD). We derive a hierarchy of stochastic differential equations, which can be solved numerically efficient and which converges rapidly to the exact reduced density matrix. We demonstrate the usefulness of the method by considering the spin-boson problem, electronic excitation transfer in the light-harvesting Fenna-Matthews-Olson (FMO) complex and the calculation of absorption spectra of molecular aggregates.