University of Cambridge > Talks.cam > Theory of Condensed Matter > Real Space Approaches to Topological Band Systems

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹī¸ Information

Real Space Approaches to Topological Band Systems

Download to your calendar using vCal

If you have a question about this talk, please contact Bo Peng .

The fields of Topology and Condensed Matter Physics have experienced a fruitful overlap which has led to a deep understanding of certain physical properties. For instance, topological invariants expressed in terms of “bulk” quantities (i.e. deep in the material), predict the existence of robust states living on the surface. In this talk, I will focus on a real-space picture of such topological systems. In particular, I will discuss how to construct optimally localised Wannier functions (a key concept bridging solid-state physics and chemistry) for so-called Chern insulators. I will also discuss how standard expressions for polarisation are not generally gauge invariant for topological band systems and show how this can be rectified, drawing on ideas from the Wannier construction.

This talk is part of the Theory of Condensed Matter series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

PPSIS Committee Room (Free School Lane) Oatley 1 Meeting Room, Floor 2, Baker Building, Cambridge University Engineering Department Average on weekdays: 9026.1300578 kWh

Other talks

Gastroenterology and Acute Medicine Talk TBC Tea and Coffee Break Together Now: Cooperation and Collaboration in Social Art Practice Title to be confirmed Title TBC
 

Š 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity