Hi, I am a theoretical physicist working on condensed matter systems. Currently, I am a Ph.D. student in the group of Prof. Dr. Simon Trebst at the Institute for Theoretical Physics, University of Cologne. You can find me at
Institute for Theoretical Physics
Zuelpicher Strasse 77
Phone: (+49) 221 470 4208
Email: fbuessen (at) thp.uni-koeln.de
I am interested in the theory of strongly correlated systems, quantum magnetism, and the formation of quantum spin liquids. I have a strong background in software development, which I leverage in my research to push the limits of what we can achieve in modern computational physics.
At the moment I am working on state-of-the-art (pseudo-fermionic) functional renormalization group implementations that have proven to be powerful tools in the exploration of frustrated quantum magnetism, especially in three spatial dimensions.
Spin-orbit entangled j=1/2 moments in Ba2CeIrO6 - a frustrated fcc quantum magnet
Quantum spin liquids in frustrated spin-1 diamond antiferromagnets
Functional renormalization group approach to SU(N) Heisenberg models: Real-space RG at arbitrary N
Functional renormalization group approach to SU(N) Heisenberg models: Momentum-space RG for the large-N limit
Competing magnetic orders and spin liquids in two- and three-dimensional kagome systems: Pseudo-fermion functional renormalization group perspective