Why is Landau-Ginzburg link cohomology equivalent to Khovanov homology?

  • Dmitry GalakhovEmail author
Open Access
Regular Article - Theoretical Physics


In this note we make an attempt to compare a cohomological theory of Hilbert spaces of ground states in the \( \mathcal{N}=\left(2,2\right) \) 2d Landau-Ginzburg theory in models describing link embeddings in ℝ3 to Khovanov and Khovanov-Rozansky homologies. To confirm the equivalence we exploit the invariance of Hilbert spaces of ground states for interfaces with respect to homotopy. In this attempt to study solitons and instantons in the LandauGiznburg theory we apply asymptotic analysis also known in the literature as exact WKB method, spectral networks method, or resurgence. In particular, we associate instantons in LG model to specific WKB line configurations we call null-webs.


Chern-Simons Theories Differential and Algebraic Geometry Sigma Models Topological Field Theories 


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© The Author(s) 2019

Authors and Affiliations

  1. 1.Center for Theoretical PhysicsUniversity of CaliforniaBerkeleyU.S.A.
  2. 2.Institute for Information Transmission ProblemsMoscowRussia

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