Topological insulator Lecture

 
Physics

Here is the lecture notes on TI, which is partly based on the lecture notes given by Janos Asboth, Laszlo Oroszlany, and Andras Palyi, Here is the resource, and you can also download a copy here.

Other good Books and review papers on this subject:

  • Topological Insulators and Topological Superconductors by Bernevig, B..
  • Topological Insulators: Dirac Equation in Condensed Matters by Shun-Qing Shen.
    1. Fruchart and D. Carpentier, Comptes Rendus Physique 14, 779 (2013).
    1. Kohmoto, Annals of Physics 160, 343 (1985).
    1. Xiao, M.-C. Chang, and Q. Niu, Reviews of Modern Physics 82, 1959 (2010).
    1. Mokrousov and F. Freimuth, arXiv:1407.2847 [cond-Mat] (2014).

More geometrical staffs at this one Geometry, Topology and Physics, by Nakahara.

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Topological insulator Lecture

  1. Front Matter

  2. Back Matter

This course-based primer provides newcomers to the field with a concise introduction to some of the core topics in the emerging field of topological insulators. The aim is to provide a basic understanding of edge states, bulk topological invariants, and of the bulk--boundary correspondence with as simple mathematical tools as possible.  The present approach uses noninteracting lattice models of topological insulators, building gradually on these to arrive from the simplest one-dimensional case (the Su-Schrieffer-Heeger model for polyacetylene) to two-dimensional time-reversal invariant topological insulators (the Bernevig-Hughes-Zhang model for HgTe). In each case the discussion of simple toy models is followed by the formulation of the general arguments regarding topological insulators.

The only prerequisite for the reader is a working knowledge in quantum mechanics, the relevant solid state physics background is provided as part of this self-contained text, which is complemented by end-of-chapter problems.

2D Materials Egde and Boundary States Quantum Hall Insulators SSH Model of Topological Insulators Time-reversal Symmetry Topological Insulators Explained Topological Insulators Textbook

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Abstract: This course-based primer provides newcomers to the field with a concise introduction to some of the core topics in the emerging field of topological band insulators in one and two dimensions. The aim is to provide a basic understanding of edge states, bulk topological invariants, and of the bulk--boundary correspondence with as simple mathematical tools as possible. We use noninteracting lattice models of topological insulators, building gradually on these to arrive from the simplest one-dimensional case (the Su-Schrieffer-Heeger model for polyacetylene) to two-dimensional time-reversal invariant topological insulators (the Bernevig-Hughes-Zhang model for HgTe). In each case the model is introduced first and then its properties are discussed and subsequently generalized. The only prerequisite for the reader is a working knowledge in quantum mechanics, the relevant solid state physics background is provided as part of this self-contained text, which is complemented by end-of-chapter problems.

From: János K. Asbóth [view email]
[v1] Tue, 8 Sep 2015 09:28:54 UTC (15,948 KB)

Topological insulator Lecture
A typical blackboard

  1. General ideas
    • Recap of tight-binding Hamiltonians in second quantization
    • Unitary and non-unitary symmetries
    • 10 fold way
  2. 1D topological phases:
    • The SSH chain
    • The Kitaev wire
  3. 2D topological phases:
    • Chern Insulators and the quantum spin-Hall effect
    • Quantized Hall and spin-Hall conductivity and material realizations
  4. 3D topological phases
    • 3D-topological insulators
    • Experimental signatures and material realizations
  5. Topological Semimetals:
    • What is a Weyl semimetal?
    • Experimental signatures and material realizations
      • ARPES: topological surface states
      • Transport phenomena: negative magnetoresistance
  6. Other phases (if time permits):
    • Crystalline topological insulators
    • Fragile phases and delicate topological phases
    • Topological superconducting phases
  7. Interacting topological phases (if time permits):
    • Entanglement entropy and topological entanglement entropy
    • Long range vs short range entangled phases.

Hand written notes: Classes 1-6Download

Hand written notes: Class 7Download

Hand written notes: Class 8Download

Slides: Intro and experimentsDownload

Typed notes: complete up to 3D-TIsDownload

Video Lessons: Lecture 1 Lecture 2 Lecture 3 Lecture 4 Lecture 5 (first hour missing, sorry!), Lecture 6, Lecture 7, Lecture 8

General reviews:

Books

  • There are by now several books on the subject. Some I willl be drawing from are the one by B. A. Bernevig, the one by P. Kotetes, or this one that will come out soon by R. Moessner and J. E. Moore
  • D. Vanderbilt has also a book on Berry phases and polarization which is quite good.
  • Many of the concepts that people use today were popularized by G. Volovik in his famous book

Chapter 1: Basics and Symmetries

Tight-Binding in 2nd quantization notes*Download

(*) I am not sure who is the author of these notes, please contact me if you see this, and I will give you credit.

Chapter 2: Examples of 1D topological phases: SSH, Rice-Mele and Kitaev wire

  • Charlie Kane’s notes on topological phases have a discussion on the topology of the SSH model
  • You can find a good summary of the types of SSH chain by R. Verresen in stack exchange here
  • There is a great discussion on the properties of the SSH model in this review (Section II C)
  • Jason Alicea’s review of topological superconductors has an excellent intro to Kitaev’s wire.

Chapter 3: Chern insulators and Quantum Spin-Hall insulators

  • The first Chern insulator: Haldane honeycomb lattice model 1988
  • This is a good (but long) review of many relevant topological insulators with concrete models. Chern Insulators are well explained too.
  • Here you can find a derivation of the Chern number/Hall conductivity for generic 2 band Hamiltonians

Chapter 4: 3D Time-reversal invariant topological insulators in class AIII

  • Same ref as above: This is a good (but long) review of all topological insulators with concrete models. 3D-TIs are explained too.