Dynamical vertex approximation -- an introduction

Details Dynamical vertex approximation -- an introduction Dynamical vertex approximation -- an introduction

2008-07-11

arxiv.org/abs/0807.1860v1

Prog. Theor. Phys. Suppl. 176, 117 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

An elementary introduction to dynamical vertex approximation given at the YKIS 2007 conference in Kyoto, Japan. 17 pages, 14 f

Scientific paper

We give an elementary introduction to a recent diagrammatic extension of dynamical mean field theory (DMFT) coined dynamical vertex approximation (D$\Gamma$A). This approach contains the important local correlations of DMFT, giving, among others, rise to quasiparticle renormalizations, Mott-Hubbard transitions and magnetism, but also non-local correlations beyond. The latter are at the very essence of many physical phenomena in strongly correlated elecectron systems. As correlations are treated equally on all length scales, D$\Gamma$A allows us to describe physical phenomena such as magnons, quantum criticality, and the interplay between antiferromagnetism and superconductivity. We review results hitherto obtained for the Hubbard model in dimensions d=3, 2, and 1.

Affiliated with

Also associated with

No associations

Rating

Dynamical vertex approximation -- an introduction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dynamical vertex approximation -- an introduction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical vertex approximation -- an introduction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576086