A Powerful New ‘QR Code’ Untangles Math’s Knottiest Knots
Summary
Quanta reports on Bar-Natan and van der Veen's development of a new knot invariant that produces colorful QR-code like outputs for knots. The invariant is strong and computable, enabling analysis of knots with hundreds of crossings and potentially tying to the Kontsevich integral's two-loop approximation. The visuals and potential applications in topology and data visualization are highlighted.