Andreev reflection and bound state formation in a ballistic two-dimensional electron gas probed by a quantum point contact

Hiroshi Irie, Clemens Todt, Norio Kumada +4

We study coherent transport and bound-state formation of Bogoliubov quasiparticles in a high-mobility In${}_{0.75}$Ga${}_{0.25}$As two-dimensional electron gas (2DEG) coupled to a sup…