Quantum-dimension conjecture for compact-group decompositions of vertex operator algebras

Let V=(V,Y,1,ω)V=(V,Y,1,\omega) be a rational, C2C_2-cofinite simple vertex operator algebra, and let GG be a subgroup of Aut(V)\operatorname{Aut}(V) that is a finite-dimensional compact Lie group acting continuously on VV. Write

V=χIrr(G)WχVχ.V=\sum_{\chi\in\operatorname{Irr}(G)}W_\chi\otimes V_\chi.

Here WχW_\chi denotes the irreducible GG-module indexed by χ\chi, VχV_\chi is the corresponding VGV^G-module, and VGV^G is the fixed-point vertex operator algebra.

Quantum-dimension conjecture. For every χIrr(G)\chi\in\operatorname{Irr}(G),

dimWχ=qdimVGVχ.\dim W_\chi=\operatorname{qdim}_{V^G}V_\chi.

Motivated by lattice vertex operator algebra examples, this conjecture proposes that the multiplicity-space dimensions in the compact-group decomposition are given by quantum dimensions over the fixed-point algebra. The source gives no resolution or restricted theorem covering the full stated generality.

Sources & referencesView supporting material

Primary source

Chongying Dong, Xiangyu Jiao and Feng Xu, “Quantum Dimensions and Quantum Galois Theory”, arXiv:1201.2738 (2012).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.