4-manifolds and topological modular forms

Nov 19, 2018
76 pages
Published in:
  • JHEP 05 (2021) 084
  • Published: May 11, 2021
e-Print:
Report number:
  • CALT-TH-2018-034

Citations per year

201620182020202220240246810
Abstract: (Springer)
We build a connection between topology of smooth 4-manifolds and the theory of topological modular forms by considering topologically twisted compactification of 6d (1, 0) theories on 4-manifolds with flavor symmetry backgrounds. The effective 2d theory has (0, 1) supersymmetry and, possibly, a residual flavor symmetry. The equivariant topological Witten genus of this 2d theory then produces a new invariant of the 4-manifold equipped with a principle bundle, valued in the ring of equivariant weakly holomorphic (topological) modular forms. We describe basic properties of this map and present a few simple examples. As a byproduct, we obtain some new results on ’t Hooft anomalies of 6d (1, 0) theories and a better understanding of the relation between 2d (0, 1) theories and TMF spectra.
Note:
  • 74 pages
  • Conformal Field Theory
  • Anomalies in Field and String Theories
  • Differential and Algebraic Geometry
  • Topological Field Theories
  • twist: topological
  • modular
  • compactification
  • dimension: 6
  • symmetry: flavor
  • differential forms