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

S. Ryu; Y. Hatsugai

doi:10.1016/s0921-4534(02)02665-5

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arXiv · cond-mat/0311404

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

S. Ryu·Y. Hatsugai

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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.

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S. Ryu, Y. Hatsugai. 2003-11-18. Zero-energy edge states and their origin in particle-hole symmetric systems: symmetry and topology. https://doi.org/10.1016/s0921-4534(02)02665-5

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