Video URL
https://pirsa.org/20110000New physics in flat Moire bands
APA
Berg, E. (2020). New physics in flat Moire bands. Perimeter Institute for Theoretical Physics. https://pirsa.org/20110000
MLA
Berg, Erez. New physics in flat Moire bands. Perimeter Institute for Theoretical Physics, Nov. 02, 2020, https://pirsa.org/20110000
BibTex
@misc{ scivideos_PIRSA:20110000, doi = {10.48660/20110000}, url = {https://pirsa.org/20110000}, author = {Berg, Erez}, keywords = {Quantum Matter}, language = {en}, title = {New physics in flat Moire bands}, publisher = {Perimeter Institute for Theoretical Physics}, year = {2020}, month = {nov}, note = {PIRSA:20110000 see, \url{https://scivideos.org/index.php/pirsa/20110000}} }
Erez Berg Weizmann Institute of Science
Abstract
Flat bands in Moire superlattices are emerging as a fascinating new playground for correlated electron physics. I will present the results of several studies inspired by these developments. First, I will address the question of whether superconductivity is possible even in the limit of a perfectly flat band. Then, I will discuss transport properties of a spin-polarized superconductor in the limit of zero spin-orbit coupling, where the topological structure of the order parameter space allows for a new dissipation mechanism not known from conventional superconductors. If time allows, I will also discuss the interpretation of new measurements of the electronic compressibility in twisted bilayer graphene, indicating a cascade of symmetry-breaking transitions as a function of the density of carriers in the system.
References:
https://arxiv.org/abs/2006.10073