Subgap in the surface bound states spectrum of Superfluid ${}^3$He-B with Rough Surface

Yasushi Nagato, Seiji Higashitani, Katsuhiko Nagai

Subgap structure in the surface bound states spectrum of Superfluid ${}^3$He-B with rough surface is discussed. The subgap is formed by the level repulsion between the surface bound…