  We consider a quantum Hall (QH) region in contact with a superconductor (SC),
i.e., a QH-SC junction. Due to successive Andreev reflections, the QH-SC
interface hosts hybridized electron and hole edge states called chiral Andreev
edge states (CAES). We theoretically study the transport properties of these
CAES by using a microscopic, tight-binding model. We find that the transport
properties strongly depend on the contact geometry and the value of the filling
factor. We notice that it is necessary to add local barriers at the corners of
the junction in order to reproduce such properties, when using effective
one-dimensional models.
