title: Electron pair escape from fullerene cage via collective modes.
abstract: Experiment and theory evidence a new pathway for correlated two-electron release from many-body compounds following collective excitation by a single photon. Using nonequilibrium Green's function approach we trace plasmon oscillations as the key ingredient of the effective electron-electron interaction that governs the correlated pair emission in a dynamic many-body environment. Results from a full ab initio implementation for C60 fullerene are in line with experimental observations. The findings endorse the correlated two-electron photoemission as a powerful tool to access electronic correlation in complex systems.
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099 Halle, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Schüler
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099 Halle, Germany.
authors.forename: Yaroslav
authors.initials: Y
authors.lastname: Pavlyukh
authors.affiliation: CNR-ISM, Area della Ricerca di Roma 1, CP10, 00016 Monterotondo Scalo, Italy.
authors.forename: Paola
authors.initials: P
authors.lastname: Bolognesi
authors.affiliation: CNR-ISM, Area della Ricerca di Roma 1, CP10, 00016 Monterotondo Scalo, Italy.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Avaldi
authors.affiliation: Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, 06099 Halle, Germany.
authors.forename: Jamal
authors.initials: J
authors.lastname: Berakdar