The Su-Schrieffer-Heeger (SSH) Model

Part of the Lecture Notes in Physics book series (LNP, volume 919)


We take a hands-on approach and get to know the basic concepts of topological insulators via a concrete system: the Su-Schrieffer-Heeger (SSH) model of polyacetylene. This model describes spinless fermions hopping on a one-dimensional lattice with staggered hopping amplitudes. Using the SSH model, we introduce the concepts of the single-particle Hamiltonian, the difference between bulk and boundary, chiral symmetry, adiabatic equivalence, topological invariants, and bulk–boundary correspondence.


Domain Wall Chiral Symmetry Thermodynamic Limit Edge State Topological Insulator 
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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Wigner Research Centre for PhysicsHungarian Academy of SciencesBudapestHungary
  2. 2.Department of Physics of Complex SystemsEötvös Loránd UniversityBudapestHungary
  3. 3.Department of Materials PhysicsEötvös Loránd UniversityBudapestHungary
  4. 4.Department of PhysicsBudapest University of Technology and EconomicsBudapestHungary

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