220 citations · 1.8k across the 55 of their papers we have counts for
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Spectra of Harmonium in a magnetic field using an initial value representation of the semiclassical propagator
Frank Grossmann, Tobias Kramer
For two Coulombically interacting electrons in a quantum dot with harmonic confinement and a constant magnetic field, we show that time-dependent semiclassical calculations using t…
High-performance solution of hierarchical equations of motions for studying energy-transfer in light-harvesting complexes
Christoph Kreisbeck, Tobias Kramer, Mirta Rodriguez +1
Excitonic models of light-harvesting complexes, where the vibrational degrees of freedom are treated as a bath, are commonly used to describe the motion of the electronic excitatio…
Time-dependent approach to transport and scattering in atomic and mesoscopic physics
Tobias Kramer
Transport and scattering phenomena in open quantum-systems with a continuous energy spectrum are conveniently solved using the time-dependent Schrodinger equation. In the time-depe…
Use of Lambert's Theorem for the n-Dimensional Coulomb Problem
Vassiliki Kanellopoulos, Manfred Kleber, Tobias Kramer
We present the analytical solution in closed form for the semiclassical limit of the quantum mechanical Coulomb Green function in position space in n dimensions. We utilize a proje…
Quasiperiodic propagation in time of some classical/quantum systems: Nielsen's conserved quantity and Floquet properties
Peter Kramer, Tobias Kramer, Vladimir I. Man'ko
We consider classical and quantum propagators for two different time intervals. If these propagators follow one another in a Fibonacci sequence we get a discrete quasiperiodic syst…
Electron dynamics in parallel electric and magnetic fields
Christian Bracher, Tobias Kramer, John B. Delos
We examine the spatial distribution of electrons generated by a fixed energy point source in uniform, parallel electric and magnetic fields. This problem is simple enough to permit…