Isotopy normalization of anyon diagrams
= Isotopy normalization of anyon diagrams
The convention in which the value of an unknotted, untwisted charge-$a$ loop is its <quantum dimension> $d_a$. For multiplicity-free <anyon fusion>, a split-fuse bubble with input charges $a,b$ and total charge $c$ gives $\sqrt{d_ad_b/d_c}$ times the identity strand; the corresponding completeness resolution has coefficient $\sqrt{d_c/(d_ad_b)}$.