Further studies of quantum Hall edge states proximitized by a superconducting nanostructure

Recent interest in condensed matter physics has focused on research in topological superconductors and fault-tolerant quantum computing. One of the areas of interest is the integration of the quantum Hall (QH) edge states with superconductors (SC), resulting in the formation of chiral Andreev edge states (CAES). CAES arise from Andreev reflection along the QH/SC interface, hybridizing electron-like and hole-like edge states. Despite progress, the precise mechanism of Andreev conversion at the QH/SC interface remains under investigation. The interference between transmitted and reflected CAES caused by the interaction between QH edge states and quantized states around superconducting nanostructures could reveal intriguing physics. The resulting signals offer new insights into the nature of the CAES. Our work provides a deeper understanding of chiral edge states in proximity-induced superconductivity.