Dr. Jessica Walkenhorst

Other Ministerio de Educación (FPU)

Research Overview: Resonant Many-particle Tunneling:
I am interested in resonant many-particle tunneling from a time-dependent and adiabatic perspective.
We solve the many-particle Schrödinger equation of a one-dimensional model Hamiltonian and observe how resonant tunneling can be analyzed in this framework.
In comparison, we also investigate how the system can be described by means of (TD)DFT. We invert the calculations to find the exact adiabatic Kohn-Sham potential and compare these results to the self-consistent potential. This allows us to identify the missing features in commonly used (TD)DFT functionals, from which we can develop a new functional to describe many-particle resonant tunneling using (TD)DFT more accurately.

Tailored pump-probe transient spectroscopy with time-dependent density-functional theory: controlling absorption spectra: J. Walkenhorst, U.De Giovannini, A.Castro, A. Rubio
European Physical Journal B 89, 128 (2016)
Simulating pump-probe photo-electron and absorption spectroscopy on the attosecond time-scale with time-dependent density-functional theory: U. De Giovannini, G. Brunetto, A. Castro, J. Walkenhorst, A. Rubio
Chemphyschem 14, 1363 - 1376 (2013)