On dualizability of braided tensor categories

Understand

We study the question of dualizability in higher Morita categories of locally presentable tensor categories and braided tensor categories.

• Our main results are that the 3-category of rigid tensor categories with enough compact projectives is 2-dualizable, that the 4-category of rigid braided tensor categories with enough compact projectives is 3-dualizable, and that (in characteristic zero) the 4-category of braided fusion categories is 4-dualizable.
• Via the cobordism hypothesis, this produces respectively 2, 3 and 4-dimensional framed local topological field theories.
• In particular, we produce a framed 3-dimensional local TFT attached to the category of representations of a quantum group at any value of $q$.