Non-perturbative techniques for many body quantum systems in low dimensions

The phenomena observed in quantum many-body systems in one and two dimensions differ strongly from those in three-dimensional ones, due to much stronger quantum and critical fluctuations. These fluctuations also severely restrict the applicability of mean-field and perturbative approximations. Several important structures in condensed matter exhibit two-dimensional behavior, e.g. the cuprate compounds and graphene. The recent achievement of a strongly degenerate quantum regime for low-dimensional atomic quantum gases offers a new and stringent experimental test of theoretical predictions and methods.  The workshop will gather senior and young researchers in the field, to discuss the state of the art and future perspectives of current theoretical approaches, such as effective field theory and the functional renormalization group, dynamical mean field theory, and  simulation methods. A focus will be on the combination of complementary methods, in order to improve the accuracy of predictions for physical quantities in difficult cases.

Veranstalter
Dr. Nicolo Defenu
Heidelberg University, Institute for theoretical physics
Philosophenweg 19
69120, Heidelberg
Tel.: 06221 54 9339
E-Mail: defenu@thphys.uni-heidelberg.de

Prof. Dr. Manfred Salmhofer
Heidelberg University, Institute for theoretical physics
Philosophenweg 19
69120, Heidelberg