Chern-Simons theory on S1-bundles: Abelianisation and q-deformed Yang-Mills theory

Jan, 2006
38 pages
Published in:
  • JHEP 05 (2006) 003
e-Print:

Citations per year

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Abstract:
We study Chern-Simons theory on 3-manifolds MM that are circle-bundles over 2-dimensional surfaces Σ\Sigma and show that the method of Abelianisation, previously employed for trivial bundles Σ×S1\Sigma \times S^1, can be adapted to this case. This reduces the non-Abelian theory on MM to a 2-dimensional Abelian theory on Σ\Sigma which we identify with q-deformed Yang-Mills theory, as anticipated by Vafa et al. We compare and contrast our results with those obtained by Beasley and Witten using the method of non-Abelian localisation, and determine the surgery and framing presecription implicit in this path integral evaluation. We also comment on the extension of these methods to BF theory and other generalisations.
  • gauge field theory: Yang-Mills
  • Chern-Simons term
  • field theory: deformation
  • fibre bundle: S(1)
  • BF model
  • operator: determinant
  • differential forms: symplectic
  • differential geometry
  • cohomology
  • group: Weyl