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

S. Ryu; Y. Hatsugai

arxiv: cond-mat/0311404 · v1 · submitted 2003-11-18 · ❄️ cond-mat.supr-con · cond-mat.str-el

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

S. Ryu , Y. Hatsugai This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords edgeparticle-holestatessymmetricsymmetrysystemstopologyzero-energy

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

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