Xiao-Liang Qi, Taylor L. Hughes, and Shou-Cheng Zhang. “Topological Field Theory of Time-Reversal Invariant Insulators.” Physical Review B 78, no. 19 (2008): 195424. – Part 2

Topological Field Theory of Time-Reversal Invariant Insulators (Part 2)

Presenter: Tejas Deshpande

Date(s): 21 April 2013

Description: This part of the paper generalizes Laughlin's argument to 4 dimensions and describes the dimensional reduction procedure. It first computes the second Chern number of a 4D Dirac Hamiltonian, illustrates the dimensional reduction of a 4D Quantum Hall Effect (QHE) to a 3D time-reversal invariant (TRI) topological insulator, and finally discusses the physical consequences of the topological E.B term.

The presentation slides for this journal club meeting can be found in the PDF file here. The PDF slides are only in the reading mode; they do not contain any animations. The original PowerPoint slides with animations can be found 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.