Zero-energy edge states and their origin in particle-hole symmetric systems: symmetry and topology

Abstract

We propose a criterion to determine the existence of zero-energy edge states for a class of particle-hole symmetric systems. A loop is assigned for each system, and its topology and a symmetry play an essential role. Applications to d-wave superconductors are demonstrated.

2 pages, Proceedings of LT23

References in corpus (1)

• Topological Origin of Zero-Energy Edge States in Particle-Hole Symmetric Systems

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• Fractional spin Josephson effect in topological spin superconductors