A pedagogical introduction to the cluster-perturbation theory, the variational cluster approximation and to self-energy-functional theory is given. Some standard applications and the relation to dynamical mean-field theory are discussed.
- Pub Date:
- July 2014
- Condensed Matter - Strongly Correlated Electrons
- 36 pages, 11 figures, to be published as a chapter of the lecture notes of the Autumn School on Correlated Electrons: DMFT at 25: Infinite Dimensions, 15-19 September 2014, Forschungszentrum Juelich