Multiple lines of conical intersections and nondegenerate ground state in T⊗t[sub 2] Jahn–Teller systems

Topology of conical intersections and Ja

Topology of conical intersections and Jahn-Teller crossing: Application to the standard model for XY4 molecules in T2 ground states

✍ D. Liotard; M. Roche 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 852 KB

The topological understanding of a potential function requires a knowledge of its critical points and indices. These concepts are mathematically meaningless if the potential function is not twice continuously differentiable. When conical intersections or Jahn-Teller crossings are encountered, the ad