Dynamics of Correlated Quantum Matter
Prof. Dr. Martin Eckstein
In our group, we study the dynamics of quantum matter, i.e., systems in which unusual macroscopic behaviour is caused by quantum effects on the microscopic scale. We aim to understand theoretically how collective behaviour like superconductivity evolves and can be influenced on the shortest possible timescales:
- Can collective properties of a complex solid be engineered by a coherently driving microscopic degrees of freedom such as electrons and phonons?
- Can an excitation out of equilibrium be used to reach hidden metastable phases, i.e., states with exotic properties which cannot be reached along conventional thermodynamics pathways?
- How can time-resolved spectroscopies, such as time-resolved photoemission spectroscopy or Xray scattering and absorption based on free electron laser sources, be used to unravel processes on microscopic time and length scales?
- “Cavity Quantum Materials:” Can the quantum nature of the electromagnetic field help to control properties of interacting quantum systems?
- How can we theoretically simulate the electronic structure in correlated electron systems out of equilibrium?
The description of such interacting many-particle systems often requires new concepts. We aim to develop new tools for microscopic simulation of strongly interacting quantum systems out of equilibrium, in particular based on non-equilibrium Green’s function techniques and extensions of non-equilibrium dynamical mean-field theory.
See also: Research