Short course on the Su-Schrieffer-Heeger model
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Article
Date
2024-03
Journal Title
Journal of Physics Research and Education
Journal Editor
Dey, Rajat Kumar
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Publisher
University of North Bengal
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Ghosh, T. K. (2024). Short course on the Su-Schrieffer-Heeger model. Journal of Physics Research and Education, 2, 36–48. https://ir.nbu.ac.in/handle/123456789/5175
Authors
Ghosh, Tarun Kanti
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Abstract
Review various topological properties of a dimer Su-Schrieffer-Heeger tight-binding model.
Exact analytical expressions of the energy spectrum and corresponding eigenstates for any choice
of system parameters are provided. We discuss the system’s parity, time-reversal, and chiral symmetries. The system undergoes a topological phase transition while tuning the hopping parameters.
The topological phase is associated with the presence of the boundary modes and establishes the
bulk-boundary correspondence.
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2
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Pages
Pages
36 - 48