Center-realization conjecture for 2-Morita equivalent condensable algebras

About 2 years old · traced to

Let \CC\CC be a modular tensor category, let (A1,A2)(A_1,A_2) be a 2-Morita-equivalent pair of condensable algebras, and let ϕ:\CCA1loc≃\CCA2loc\phi:\CC_{A_1}^{loc}\simeq\CC_{A_2}^{loc} be the associated equivalence. Construct BϕB_\phi by choosing an indecomposable summand as described in the source, and let Ext⁡Ai(Bϕ)\operatorname{Ext}_{A_i}(B_\phi) denote its extension over AiA_i.

Center-realization conjecture. An indecomposable subalgebra

B↪Ext⁡A1(Bϕ)\otExt⁡A2(Bϕ)B\hookrightarrow\operatorname{Ext}_{A_1}(B_\phi)\ot\operatorname{Ext}_{A_2}(B_\phi)

is the 1d condensable algebra corresponding to (A1,A2)(A_1,A_2), in the sense that

Zl(B)≅A1,Zr(B)≅A2.Z_l(B)\cong A_1,\qquad Z_r(B)\cong A_2.

This would establish the converse direction needed to recover 1d condensable algebras from 2-Morita-equivalent pairs. The source gives no proof or resolution.

References

Primary source

Rongge Xu and Holiverse Yang, “2-Morita Equivalent Condensable Algebras and Domain Walls in 2+1D Topological Orders”, arXiv:2403.19779 (2025).

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.