research interests
My general research interests are situated in the field of strongly correlated quantum systems which are important in condensed matter and in atomic physics. Here strongly interacting degrees of freedom on a lattice give rise to novel phases and exotic excitations when embedded in an enviroment of enhanced quantum fluctuations.
I work along three main lines of research. The identification of novel phases in microscopic models is the first focus. The second focus is the quantitative description of excitations above already identified ground states. A part from the properties of a single elementary excitation, the formation of novel composite particles is of special interest. The third focus is the development of novel numerical tools to treat competing interactions in many-body systems.
| Low-dimensional Magnets |
Frustrated Systems |
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Continuous Unitary Transformations |
Series expansion |
| Orbital waves |
Ultracold atoms in optical lattices |
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Quantum Monte Carlo |
Mean-Field |
| Anyons and Kitaev models |
Supersolids |
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research
