Gerhard Ritschel
Max Planck Society
12 Papers
136 Citations
Gerhard Ritschel is an academic researcher from Max Planck Society. The author has contributed to research in topics: Open quantum system & Master equation. The author has an hindex of 8, co-authored 12 publications.
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Papers
Absence of Quantum Oscillations and Dependence on Site Energies in Electronic Excitation Transfer in the Fenna–Matthews–Olson Trimer
TL;DR: In this paper, energy transfer in the photosynthetic Fenna-Matthews-Olson (FMO) complex of green sulfur bacteria is studied numerically taking all three subunits (monomers) of the FMO trimer and the recently found eighth bacteriochlorophyll (BChl) molecule into account.
Suppression of quantum oscillations and the dependence on site energies in electronic excitation transfer in the Fenna-Matthews-Olson trimer
TL;DR: In this article, the energy transfer in the photosynthetic complex of the Green Sulfur Bacteria known as the FMO complex was studied theoretically taking all three subunits (monomers) of FMO trimer and the recently found eighth bacteriochlorophyll (BChl) molecule into account.
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Analytic representations of bath correlation functions for ohmic and superohmic spectral densities using simple poles.
TL;DR: A class of fit functions that enables us to model ohmic as well as superohmic behavior are introduced and it is shown how to use these functions to fit spectral densities exemplarily for cases encountered in the description of photosynthetic light harvesting complexes.
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Non-Markovian Quantum State Diffusion for Temperature-Dependent Linear Spectra of Light Harvesting Aggregates
TL;DR: It is shown in this paper that for linear optical spectra (absorption, circular dichroism), no stochastics is needed, even for finite temperatures, and the spectra can be obtained by propagating a single trajectory using the so-called thermofield method.
28
Analytic Representations of Bath Correlation Functions for Ohmic and Superohmic Spectral Densities Using Simple Poles
TL;DR: In this article, a bath correlation function (BCF) corresponding to a given spectral density (SD) is expressed as a sum of damped harmonic oscillations, and a class of fit functions that enable us to model ohmic as well as super-ohmic behavior is introduced.
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