Tutorial: Computing Topological Invariants in 2D Photonic Crystals

  title={Tutorial: Computing Topological Invariants in 2D Photonic Crystals},
  author={Mar{\'i}a Blanco de Paz and Chiara Devescovi and G{\'e}za Giedke and J J S{\'a}enz and Maia G. Vergniory and Barry Bradlyn and Dario Bercioux and Aitzol Garc'ia-Etxarri},
  journal={Advanced Quantum Technologies},
The field of topological photonics emerged as one of the most promising areas for applications in transformative technologies: possible applications are in topological lasers or quantum optics interfaces. Nevertheless, efficient and simple methods for diagnosing the topology of optical systems remain elusive for an important part of the community. Herein, a summary of numerical methods to calculate topological invariants emerging from the propagation of light in photonic crystals is provided… 

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