Martin Hohenadler and Fakher F. Assaad. “Correlation effects in two-dimensional topological insulators.” Journal of Physics: Condensed Matter 25, no. 14 (2013): 143201. – Part 1

Correlation effects in two-dimensional topological insulators (Part 1)

This paper extends the analysis of the Quantum Spin Hall Effect (QSHE) by introducing interactions. It introduces the so-called Bernevig-Hughes-Zhang-Hubbard (BHZH) and Kane-Mele-Hubbard (KMH) models to study the resulting phase diagram. This part of the paper specifically studies the effect of correlations in the bulk. The effect of correlations at the edges as well as the definition and efficient computation of topological invariants in interacting systems is discussed in the next part.

With the permission of the presenter, the slides for this journal club meeting can be found in the PDF file here. If you notice any typos or scientific inaccuracies in the slides, I would be grateful if you could bring them to my attention by sending me an email.