The conjecture on the quotient loop-model module without through-lines

Let D4A2W0,q±2D4A2\mathscr W_{0,\mathfrak q^{\pm 2}} denote the quotient loop-model module without through-lines, and let Xn,1\mathsf{X}_{n,1} and Xn,1\overline{\mathsf{X}}_{n,1} be irreducible left- and right-moving Virasoro modules, respectively. In the scaling limit,

W0,q±2n=1Xn,1Xn,1.\overline{\mathscr W}_{0,\mathfrak q^{\pm 2}}\mapsto\bigoplus_{n=1}^{\infty}\mathsf{X}_{n,1}\otimes\overline{\mathsf{X}}_{n,1}.

Quotient loop-model module without through-lines conjecture. For generic q\mathfrak q, the scaling limit of the quotient loop-model module without through-lines is the direct sum displayed above. This concerns the Virasoro-module decomposition of the j=0j=0 sector and does not involve Jordan blocks. The modules Xr,s\mathsf{X}_{r,s} are irreducible Virasoro modules with highest weight hr,sh_{r,s}; in this case they are Kac modules with the submodule generated by the unique singular vector at level rsrs factored out. The result was reported as well checked, but its general status is not otherwise established in the supplied text.

Sources & referencesView supporting material

Primary source

Lawrence Liu, Jesper Lykke Jacobsen and Hubert Saleur, “Emerging Jordan blocks in the two-dimensional Potts and loop models at generic Q”, arXiv:2403.19830 (2024).

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