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HL: Fachverband Halbleiterphysik

HL 9: Focus Session: Graphene quantum dots (joint session HL/TT)

HL 9.2: Hauptvortrag

Montag, 27. März 2023, 15:30–16:00, POT 251

Microscopic modelling of electrostatically induced bilayer graphene quantum dots — •Angelika Knothe — Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany

Quantum nanostructures, e.g., quantum wires and quantum dots, are needed for applications in quantum information processing devices, such as transistors or qubits. In gapped bilayer graphene, one can confine charge carriers purely electrostatically, inducing smooth confinement potentials and thereby limiting edge-induced perturbances while allowing gate-defined control of the confined structure. In this talk, I will give an overview of our recent contributions toward the theoretical modelling of gate-defined bilayer graphene quantum dots, taking into account microscopic details of the material properties and the confinement. As an outlook, I will point towards current and future challenges in describing coupled bilayer graphene nanostructures, e.g., setups with multiple bilayer graphene quantum dots.