Quantum Lunch: Universality in interacting topological insulators – University of Copenhagen

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QMath > Events > Quantum Lunch > w 49 Marcello Porta

Quantum Lunch: Universality in interacting topological insulators

Speaker:
Marcello Porta from University of Zurich

Title:
Universality in interacting topological insulators

Abstract:
In this talk I will consider the charge transport properties of two-dimensional interacting fermionic systems, in the zero temperature and infinite volume limit. In the first part
of the talk, I will discuss the stability of the integer quantum Hall effect for general weakly interacting gapped fermionic systems. 

In the second part of the talk, I will focus on the topological phase transitions of the Haldane-Hubbard model. I will present a rigorous construction of the interacting topological phase diagram, and prove the universality of
conductivity at criticality.