Theory of correlated systems out of equilibrium

We study the nonequilibrium dynamics of interacting quantum many-particle systems, such as correlated electrons, phonons and spins under the influence of external driving forces, from a microscopic perspective. For this purpose we will use dynamical mean-field theory (DMFT) and its extensions, which solve quantum lattice models in the thermodynamic limit by mapping them onto a small cluster embedded in an effective medium. A crucial part of our research is the development of efficient numerical techniques to compute the real-time evolution in those impurity models, using Quantum Monte Carlo, diagrammatic techniques, and exact diagonalization. Our goal is to transform DMFT and its extensions into a predictive tool for the nonequilibrium dynamics in correlated systems, and to uncover new effects such as long-lived hidden phases that can be reached along non-thermal excitation pathways, driven steady states far from linear response, and dynamical phase transitions.

 
More: Theory of correlated systems out of equilibrium group website.


Contact:

Prof. Dr. Martin Eckstein
Condensed Matter Division,
Max Planck Research Department
for Structural Dynamics at the University of Hamburg,CFEL

c/o Desy, Bldg. 222, Rm. 205
Notkestrasse 85
22607 Hamburg, Germany

Fax: 0049 (0) 40 8998 6270
Email: martin.eckstein (at) mpsd.cfel.de

Web: mpsd-cmd.cfel.de/theo/index.html

 

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CFEL is a cooperation of the three independent partner organisations:
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CFEL - Max Planck Research Department for Structural Dynamics at the University of Hamburg


 
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