36 citations · 36 across the 1 of their papers we have counts for
3 papers
cond-mat.mes-hall2015★ 36 cited
Many-body Green's function theory for electron-phonon interactions: the Kadanoff-Baym approach to spectral properties of the Holstein dimer
N. Säkkinen, Y. Peng, H. Appel +1
We present a Kadanoff-Baym formalism to study time-dependent phenomena for systems of interacting electrons and phonons in the framework of many-body perturbation theory. The forma…
cond-mat.str-el2014
Many-body Green's function theory for electron-phonon interactions: ground state properties of the Holstein dimer
N. Säkkinen, Y. Peng, H. Appel +1
We study ground-state properties of a two-site, two-electron Holstein model describing two molecules coupled indirectly via electron-phonon interaction by using both exact diagonal…
cond-mat.str-el2011
Kadanoff-Baym approach to double-excitations in finite systems
N. Säkkinen, M. Manninen, R. van Leeuwen
We benchmark many-body perturbation theory by studying neutral, as well as non-neutral, excitations of finite lattice systems. The neutral excitation spectra are obtained by time-p…