Coarse Geometry and Topological Phases

  • Eske Ellen Ewert
  • Ralf MeyerEmail author


We propose the Roe \({{\rm C}^*}\)-algebra from coarse geometry as a model for topological phases of disordered materials. We explain the robustness of this \({{\rm C}^*}\)-algebra and formulate the bulk–edge correspondence in this framework. We describe the map from the K-theory of the group \({{\rm C}^*}\)-algebra of \({\mathbb {Z}^d}\) to the K-theory of the Roe \({{\rm C}^*}\)-algebra, both for real and complex K-theory.


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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Mathematisches InstitutUniversität GöttingenGöttingenGermany

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