Pre-modular fusion categories of global dimensions p2p^2

preprint2022arXivOpen access

Abstract

Let p≥5p\geq5 be a prime, we show that a non-pointed modular fusion category C\mathcal{C} is Grothendieck equivalent to C(sl2,2(p−1))A0\mathcal{C}(\mathfrak{sl}_2,2(p-1))_A^0 if and only if dim⁡(C)=p⋅u\dim(\mathcal{C})=p\cdot u, where uu is a certain totally positive algebraic unit and AA is the regular algebra of the Tannakian subcategory Rep(Z2)⊆C(sl2,2(p−1))\text{Rep}(\mathbb{Z}_2)\subseteq\mathcal{C}(\mathfrak{sl}_2,2(p-1)). As a direct corollary, we classify non-simple modular fusion categories of global dimensions p2p^2.

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