Dr. B on Instagram: "A Chain That Changed Physics — The SSH Model | Topological Physics — The SSH (Su-Schrieffer-Heeger) model — the simplest one-dimensional topological insulator. A chain of atoms with alternating bonds that reveals topological phases, protected edge states, and bulk-boundary correspondence. In this video, we walk through: ⏱ TIMESTAMPS 00:00 — Introduction 00:05 — The Dimerized Chain & Alternating Hoppings 00:35 — Polyacetylene & the 2000 Nobel Prize 01:00 — Topological vs Triv