Chemische Physik fern des Gleichgewichts

Prof. Katharina Krischer

Forschungsgebiet

We are working on topics falling into two different areas: Nonlinear Dynamics (e.g. Pattern Recognition, Pattern Formation during Si-Electrodissolution, Pattern Formation in Electrocatalytic Reactions, Complex Ginzburg-Landau Equation) and Artificial Photosynthesis - Photoelectrochemistry.

Adresse/Kontakt

James-Franck-Str. 1
85748 Garching b. München

Mitarbeiterinnen und Mitarbeiter der Arbeitsgruppe

Professorinnen und Professoren

Mitarbeiterinnen und Mitarbeiter

Lehrangebot der Arbeitsgruppe

Lehrveranstaltungen mit Beteiligung der Arbeitsgruppe

Ausgeschriebene Angebote für Abschlussarbeiten an der Arbeitsgruppe

Die Dynamik global-gekoppelter Stuart-Landau Oszillatoren

Coupled oscillators appear in many physical and biological systems, such as firing neurons in the brain or the pulsation of the human heart.
If the coupling diffuses fast, it can be approximated through a global coupling, and, as the simplest form, through the mean of the oscillator ensemble. It is known that such a coupling can lead
to a large variety of different dynamical states, such as secondary oscillations, clustering, chaotic dynamics or 'partial' chaos.
However, even the case of two mean-coupled oscillators is not well understood. Using two limit-cycle oscillators and coupling them through the mean field, the objective of this thesis is to find
all bifurcations occurring in such a system. We believe that those bifurcations are universal in the sense that they will also appear in larger ensembles of coupled oscillators, facilitating the understanding of coupled oscillators in general. Therefore, the results of two mean-coupled oscillators can then be extended to larger ensembles.

Requirements for this thesis are a basic understanding of nonlinear dynamics and a solid background in PYTHON. In addition, since many bifurcations cannot be obtained analytically, numerical continuation software such as AUTO has to be exploited, which requires some basic programming skills.
If you are interested, please contact f.kemeth@tum.de or krischer@tum.de.

geeignet als
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Kern-, Teilchen- und Astrophysik
  • Masterarbeit Biophysik
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Katharina Krischer
Ortsaufgelöste Untersuchung der Wasserstoffentwicklung auf nanostrukturierten Au- und Cu- Oberflächen mittels Rastertunnelmikroskopie

Catalytic reactions on metal surfaces are not homogeneous, but depend strongly on the detailed morphology of catalytic active surfaces. Scanning tunneling microscopy will be utilized to investigate important factors how catalytic reactions depend on the actual surface morphology. This will be studied for the example of hydrogen evolution, and finally help to develop catalyst surfaces which exhibit a uniform and high catalytic efficiency.

geeignet als
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Kern-, Teilchen- und Astrophysik
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Werner Schindler
Untersuchung der CO2-Reduktionreaktion an Pyridin modifizierten Pt-Oberflächen mittels Infrarotspektroskopie

The role of Pyridin during the CO2-reduction reaction on Pyridin modified surfaces shall be investigated with Infrared spectroscopy in order to obtain a deeper understanding of this complex process. Pyridin is a model system for possible organic catalysts, which could substitute precious noble metals like Pt.

geeignet als
  • Bachelorarbeit Physik
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Kern-, Teilchen- und Astrophysik
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Werner Schindler

Abgeschlossene und laufende Abschlussarbeiten an der Arbeitsgruppe

Characterization of Multiple Bifurcation Scenarios during the Electrodissolution of p-Type Si in Fluoride Containing Electrolytes
Abschlussarbeit im Masterstudiengang Physics (Applied and Engineering Physics)
Themensteller(in): Katharina Krischer
Characterization of gold/copper nanostructures on silicon electrodes for applications in photoelectrochemical CO₂ conversion
Abschlussarbeit im Masterstudiengang Physics (Applied and Engineering Physics)
Themensteller(in): Katharina Krischer
A Novel Implementation of Coupled Oscillator Pairs As Pattern Recognition Device
Abschlussarbeit im Masterstudiengang Physics (Applied and Engineering Physics)
Themensteller(in): Katharina Krischer
Pyridine-Catalysed Carbon Dioxide Reduction to Methanol on Platinum Surfaces
Abschlussarbeit im Masterstudiengang Physics (Applied and Engineering Physics)
Themensteller(in): Katharina Krischer

Kondensierte Materie

Wenn Atome sich zusammen tun, wird es interessant: Grundlagenforschung an Festkörperelementen, Nanostrukturen und neuen Materialien mit überraschenden Eigenschaften treffen auf innovative Anwendungen.