Journal of High Energy Physics (Feb 2019)

Plane partition realization of (web of) W $$ \mathcal{W} $$ -algebra minimal models

  • Koichi Harada,
  • Yutaka Matsuo

DOI
https://doi.org/10.1007/JHEP02(2019)050
Journal volume & issue
Vol. 2019, no. 2
pp. 1 – 36

Abstract

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Abstract Recently, Gaiotto and Rapčák (GR) proposed a new family of the vertex operator algebra (VOA) as the symmetry appearing at an intersection of five-branes to which they refer as Y algebra. Procházka and Rapčák, then proposed to interpret Y algebra as a truncation of affine Yangian whose module is directly connected to plane partitions (PP). They also developed GR’s idea to generate a new VOA by connecting plane partitions through an infinite leg shared by them and referred it as the web of W-algebra (WoW). In this paper, we demonstrate that double truncation of PP gives the minimal models of such VOAs. For a single PP, it generates all the minimal model irreducible representations of W-algebra. We find that the rule connecting two PPs is more involved than those in the literature when the U(1) charge connecting two PPs is negative. For the simplest nontrivial WoW, N $$ \mathcal{N} $$ = 2 superconformal algebra, we demonstrate that the improved rule precisely reproduces the known character of the minimal models.

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