Physics & Astronomy Virtual Colloquium - Lauk Rademaker
Title: "Quantum Matter with a Twist"
Location
Zoom (email for link & password)
Sponsored by
Physics & Astronomy Department
Audience
Public
Abstract: Questions of strong electron correlations have been long plagued by hard-to-interpret experimental results. One of the most pressing and longstanding questions is the nature of the doping-controlled Mott transition, a regime where the standard picture of electronic quasiparticles fails. Similarly, it is not known what happens to materials where nontrivial band topology is combined with strong electron interactions.
The recent discovery of Moiré materials has the potential to change our understanding of interacting topological matter. Experiments in twisted bilayer graphene and transition-metal dichalcogenide bilayers have revealed a staggering range of novel correlated phases: including correlated insulators, unconventional superconductivity, Wigner-Mott crystals and the Quantum Anomalous Hall effect. There is, however, little theoretical understanding on the origin of these phases. In this talk, I will describe the challenges of studying Moiré materials, and the prospect that they can increase our knowledge of interacting topological matter. Location
Zoom (email for link & password)
Sponsored by
Physics & Astronomy Department
Audience
Public