Zero-Energy Modes, Fractional Fermion Numbers and The Index Theorem in a Vortex-Dirac Fermion System

Zero-Energy Modes, Fractional Fermion Numbers and The Index Theorem in a Vortex-Dirac Fermion System

Physics of topological materials has attracted much attention from both physicists and mathematicians recently. The index and the fermion number of Dirac fermions play an important role in topological insulators and topological superconductors. A zero-energy mode exists when Dirac fermions couple to...

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Bibliographic Details
Main Author: Takashi Yanagisawa
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Symmetry
Subjects:
topological insulator
vortex, fractional quantization
dirac hamiltonian
layered superconductor
index theorem
zero-energy mode
majorana fermion
fractional fermion number
Online Access:https://www.mdpi.com/2073-8994/12/3/373

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https://www.mdpi.com/2073-8994/12/3/373

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