Heisenberg model on a space with negative curvature: topological spin textures on the pseudosphere

L. R. A. Belo, N. M. Oliveira-Neto, W. A. Moura-Melo +2

Heisenberg-like spins lying on the pseudosphere (a 2-dimensional infinite space with constant negative curvature) cannot give rise to stable soliton solutions. Only fractional solu…