Interaction between domain walls in chiral p-wave superconductors

Abstract

We calculate microscopically the interaction energy of domain walls separating degenerate ground states in a chiral p-wave superconductor. The interaction is mediated by the quasiparticles experiencing Andreev scattering at the domain walls. As a by-product, we derive a useful general expression for the free energy of an arbitrary nonuniform texture of the order parameter in terms of the quasiparticle scattering matrix.

9 pages, 3 figures

References in corpus (6)

• New directions in the pursuit of Majorana fermions in solid state systems
• Introduction to topological superconductivity and Majorana fermions
• Is Sr2RuO4 a Chiral P-Wave Superconductor?
• Anomalous Transport through the p-Wave Superconducting Channel in the 3-K Phase of Sr2RuO4
• Domain walls in chiral p-wave superconductors: Quasiparticle spectrum and dynamics
• Anomalous quantum mass flow of atoms in p-wave resonance