242 citations · 1.1k across the 34 of their papers we have counts for
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Finite elements and the discrete variable representation in nonequilibrium Green's function calculations. Atomic and molecular models
Karsten Balzer, Sebastian Bauch, Michael Bonitz
In this contribution, we discuss the finite-element discrete variable representation (FE-DVR) of the nonequilibrium Green's function and its implications on the description of stro…
Efficient grid-based method in nonequilibrium Green's function calculations. Application to model atoms and molecules
K. Balzer, S. Bauch, M. Bonitz
We propose and apply the finite-element discrete variable representation to express the nonequilibrium Green's function for strongly inhomogeneous quantum systems. This method is h…
Quantum kinetic approach to time-resolved photoionization of atoms
M. Bonitz, D. Hochstuhl, S. Bauch +1
Theoretical approaches to the photoionization of few-electron atoms are discussed. These include nonequilibrium Greens functions and wave function based approaches. In particular,…
Quantum breathing mode of trapped bosons and fermions at arbitrary coupling
S. Bauch, K. Balzer, C. Henning +1
An analysis of the quantum breathing behavior of few-particle Coulomb systems in one- and two-dimensional harmonic traps is presented. We report the existence of \emph{two independ…
Nonequilibrium Green function approach to photoionization processes in atoms
D. Hochstuhl, K. Balzer, S. Bauch +1
We present a quantum kinetic approach for the time-resolved description of many-body effects in photoionization processes in atoms. The method is based on the non-equilibrium Green…