Cel The structures nature has built to harvest and use the light from the sun are full of ingenuity. Indeed, they are the product of millions of years of trial and error. A lot can be learnt from the structure and function of photosynthetic organisms to help guide humanity's effort to develop solar energy technologies. One of the frontiers in understanding the early stages of photosynthesis is the interaction of the excited chromophores with the environment, and in particular how energy is dissipated as the light-induced excitation migrates to the reaction center where it will produce a charge separated state. It has become evident that the details of the dissipation are crucial for an efficient transfer. Dissipation is characterized by the spectral density of the bath, but this information is difficult to extract experimentally. Current approaches (e.g. three pulse photon echo spectroscopy, fluorescence line narrowing) have several limitations such as the inability to predict the motion for short times where the non-Markovianity of the bath is most evident. In this work, we will develop descriptions of multidimensional spectroscopy which will map the spectral density as an experimental observable. For this we will work in the Non-equilibrium Green functions formalism, and apply partition ansatz for the bath such as the surrogate Hamitlonian to facilitate obtaining analytical expressions. Our formalism will be benchmarked against exact numerical methods by the use of entanglement and non-Markovianity witnesses. The application of our theory to natural systems will yield a picture of the most salient bath features in natural systems. These will be then compared to selected artificial systems. Dziedzina nauki natural scienceschemical sciencescatalysisphotocatalysisnatural sciencesphysical sciencesatomic physicsnatural sciencesphysical sciencesquantum physicsquantum opticsnatural sciencesmathematicsapplied mathematicsnumerical analysisnatural sciencesphysical sciencesopticsspectroscopy Program(-y) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Temat(-y) MSCA-IF-2015-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Zaproszenie do składania wniosków H2020-MSCA-IF-2015 Zobacz inne projekty w ramach tego zaproszenia System finansowania MSCA-IF-EF-ST - Standard EF Koordynator LUNDS UNIVERSITET Wkład UE netto € 173 857,20 Adres Paradisgatan 5c 22100 Lund Szwecja Zobacz na mapie Region Södra Sverige Sydsverige Skåne län Rodzaj działalności Higher or Secondary Education Establishments Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Uczestnictwo w unijnych programach w zakresie badań i innowacji Opens in new window sieć współpracy HORIZON Opens in new window Koszt całkowity € 173 857,20
