Abstract:
Motivated by connections to the singlet vertex operator algebra in the
$\mathfrak{g}=\mathfrak{sl}_2$ case, we study the unrolled
restricted quantum group $\overline{U}_q^{\,H}(\mathfrak{g})$ for any finite
dimensional complex simple Lie algebra $\mathfrak{g}$ at arbitrary roots of
unity with a focus on its category of weight modules. We show that the
braid group action naturally extends to the unrolled quantum groups and
that the category of weight modules is a generically semi-simple ribbon
category (previously known only for odd roots) with trivial Müger
center and self-dual projective modules.