René Jestädt

Ab initio simulations of fully coupled light-matter systems: • Expansion and further development of the PhD project of an ab initio fully coupled Maxwell-Kohn-Sham simulation by considering moved ions and diamagnetic current density • Additional boundary conditions to simulate light signals with arbitrary orbital angular momentum

Ab initio simulations of fully coupled light-matter systems: • Implementation of an ab initio method to simulate fully coupled Maxwell-Kohn-Sham systems in three dimensions • Density-functional Theory for simulating complex microscopic quantum mechanical light-matter systems • Demonstration of the relevance of the complete matter to light back-reaction for the entire light-matter system

Ab initio simulations of fully coupled light-matter systems: • Implementation of a three-dimensional electromagnetic field simulation with a parallelized calculation for supercomputers using message passing interface (MPI) • Adding external electric currents and a number of appropriate boundary conditions to the simulation

Ab initio simulations of fully coupled light-matter systems: • Implementation of an one-dimensional electromagnetic field simulation which uses a new algorithm to evolve the field with a quantum mechanical Schrödinger propagator, that solves the inhomogeneous Maxwell‘s equations

Quantum mechanical three-body systems beyond the Born-Oppenheimer approximation: • Implementation of an algorithm to solve the quantum mechanical three-body problem in perimetric coordinates • Investigation of the corresponding absorption spectrum with transition rate matrices in dipole approximation

• Research of physical properties of natural gas storage and electrochemical processes • Creation of simulations and predictions using a combination of physical equations and machine learning methods with experimental data • Big data processing and analysis with data mining methods and best fit algorithms • Implementation of neural networks with graphical user interface and graphical output

• Molekularphysik, Festkörperphysik, Dichtefunktionaltheorie • Computerphysik, Simulation gekoppelter Systeme • Licht-Materie-Wechselwirkung, Nichtlineare Optik • Nanoplasmonische Systeme • Quantenelektrodynamik, Quantenoptik

• Theoretische Physik (Vielteilchentheorie, Festkörperphysik, Quantenfeldtheorie, Statistische Physik, Thermodynamik, Kern- u. Teilchenphysik) • Mathematik (Funktionalanalysis, Funktionentheorie, Differentialgeometrie) • Biologie (Genetik)

• Theoretische und experimentelle Physik (Mechanik, Elektrodynamik, Quantenmechanik, Computerphysik/Simulationen) • Mathematik (Lineare Algebra, Analysis, Differential-gleichungen) • Chemie (Anorganische Chemie)