Gauge/Liouville Triality

Sep 6, 2013
50 pages
Published in:
  • Commun.Math.Phys. 405 (2024) 12, 285
  • Published: Nov 13, 2024
e-Print:
Report number:
  • ITEP-TH-30-13,
  • SISSA-42-2013-FISI

Citations per year

20132016201920222024051015
Abstract: (Springer)
Conformal blocks of the Virasoro algebra have a Coulomb-gas representation as Dotsenko-Fateev integrals over the positions of screening charges. In q-deformed Virasoro, the conformal blocks on a sphere with an arbitrary number of punctures are manifestly the same, when written in Dotsenko-Fateev representation, as the partition functions of a class of 3d U(N) gauge theories with N=2{{\mathcal {N}}}=2 supersymmetry, in the Ω\Omega -background. Coupling the 3d gauge theory to a flavor in fundamental representation corresponds to inserting a Virasoro vertex operator; the two real mass parameters determine the momentum and position of the puncture. The Dotsenko-Fateev integrals can be computed by residues. The result is the instanton sum of a five dimensional N=1{{\mathcal {N}}}=1 gauge theory. The positions of the poles are labeled by tuples of partitions, the residues of the integrand are the Nekrasov summands.
Note:
  • 50 pages, 3 figures. v2: Typos corrected, aspects of 3d gauge theory clarified, references added
  • gauge field theory: U(N)
  • field theory: Liouville
  • mass: deformation
  • supersymmetry: 4
  • operator: vertex
  • dimension: 5
  • conformal block
  • partition function
  • instanton
  • triality