Research Group of Prof. Dr. Bester
Theory of Nanoscopic Systems
Our research group focuses on developing and utilizing numerical techniques to explore the quantum mechanical properties of nanoscopic systems. These structures confine carriers, showcasing significant quantum effects crucial for understanding fundamental matter properties and leveraging unique traits in nanotechnology. Our goal involves developing theoretical concepts, integrating them into computational methods, and interpreting experimental data or generating novel predictions.
Our approaches are atomistic, either ab-initio (DFT, GW) or semi-empirical (AEPs) and coupled to quantum chemistry methods (screened CI).
This allows us to accurately describe colloidal semiconductor quantum dots, made of a few hundred atoms, all the way to epitaxial quantum dots made of millions of atoms. Our calculations of correlated many-body wave functions lead to accurate optical properties. These are relevant in the modern fields of quantum information science and solid-state quantum optics.
Our group is associated with Physics Department (INF).
Our research group is currently involved in the following funded projects:
- ITN Project 4Photon
- DFG Project Resonant Raman spectroscopy as tool to investigate colloidal semiconductor nanocrystals
- Cluster of Excellence CUI: Advanced Imaging of Matters
HLRS Golden Spike Award
In October 2015, Prof. Gabriel Bester and Dr. Peng Han were awarded with the HLRS Golden Spike Award for the presentation of their work in the field of Ab initio calculations of vibration characteristics and dynamic processes in semiconductor nanostructures.
Preis für gute Lehre (Award for Good Teaching)
In April 2019, Prof. Gabriel Bester was awarded with the 2nd prize for good teaching for his lecture "Quantenphysik/-chemie", in the category "Lectures in Winter Semester 2018/2019", by student representatives of the Physics Department (Universität Hamburg).