Speaker
Description
Van der Waals materials provide a flexible platform to engineer exotic quantum matter, thanks to the ability to combine different 2D materials with competing orders. Understanding emergent quantum states in quantum materials requires capturing topology, spin-orbit coupling effects, impurities, strain, magnetism, superconductivity, and electronic correlations, among others. Here, we will present the theoretical background and computational demonstrations showing how to engineer emergent quantum matter in 2D materials and van der Waals heterostructures. Specifically, we will address the emergence of topological states, conventional and unconventional superconductivity, criticality, moiré electronic states, and conventional and frustrated magnetism. First, the tutorial will provide an introduction to the different phenomena addressed, and discussing how these unconventional states of matter can be engineered by combining specific orders in 2D materials, by leveraging proximity effects and twist engineering. Second, the tutorial will demonstrate the emergence of these quantum states using the Python computational library pyqula [1] using real-space tight-binding models, exemplifying how the different concepts discussed can be studied with computational models. The computational demonstrations will be accompanied by hands-on exercises using Jupyter notebooks, enabling real-time experimentation on how those electronic states can be engineered. The tutorial will provide an introduction and hands on demonstration on a computational tool to rationalize different form of 2D quantum matter, aimed both for theorists and experimentalists.
[1] https://github.com/joselado/pyqula