The magic of moiré quantum matter

by Pablo Jarillo-Herrero

Mit
at Physics Colloquium

Mon, 26 Oct 2020, 15:55
Zoom: https://weizmann.zoom.us/j/93903178346?pwd=VUJNa0Z1NkZhZDhjTnRXeVVGbEszUT09

Abstract

*** This colloquium is joint with all the universities in Israel. We invite you to log in at 15:55 for 15 minutes of socializing via breakout rooms before the beginning of the talk itself at 16:10. ***

The understanding of strongly-correlated quantum matter has challenged physicists for decades. Such difficulties have stimulated new research paradigms, such as ultra-cold atom lattices for simulating quantum materials. In this talk I will present a new platform to investigate strongly correlated physics, namely moiré quantum matter. In particular, I will show that when two graphene sheets are twisted by an angle close to the theoretically predicted ‘magic angle’, the resulting flat band structure near the Dirac point gives rise to a strongly-correlated electronic system. These flat bands systems exhibit a plethora of quantum phases, such as correlated insulators, superconductivity, magnetism, Chern insulators, and more. Furthermore, it is possible to extend the moiré quantum matter paradigm to systems beyond magic angle graphene, and I will present an outlook of some exciting directions in this emerging field.

Zoom link: https://weizmann.zoom.us/j/93903178346?pwd=VUJNa0Z1NkZhZDhjTnRXeVVGbEszUT09

Created on 20-10-2020 by Kats, Yevgeny (katsye)
Updaded on 20-10-2020 by Kats, Yevgeny (katsye)