Magnetization dynamics and Peierls instability in topological Josephson structures
Magnetization dynamics and Peierls instability in topological Josephson structures
We study a long topological Josephson junction with a ferromagnetic strip between two superconductors. The low-energy theory exhibits a non-local in time and space interaction between chiral Majorana fermions, mediated by the magnonic excitations in the ferromagnet. While short ranged interactions turn out to be irrelevant by power counting, we …