  Skyrmions are topological solitons that emerge in many physical contexts. In
magnetism, they appear as textures of the spin-density field stabilized by
different competing interactions and characterized by a topological charge that
counts the number of times the order parameter wraps the sphere. They can
behave as classical objects, when the spin texture varies slowly on the scale
of the microscopic lattice of the magnet. However, the fast development of
experimental tools to create and stabilize skyrmions in thin magnetic films has
lead to a rich variety of textures, sometimes of atomistic sizes. In this
article, we discuss, in a pedagogical manner, how to introduce quantum
interference in the translational dynamics of skyrmion textures, starting from
the micromagnetic equations of motion for a classical soliton. We study how the
nontrivial topology of the spin texture manifests in the semiclassical regime,
when the microscopic lattice potential is treated quantum-mechanically, but the
external driving forces are taken as smooth classical perturbations. We
highlight close relations to the fields of noncommutative quantum mechanics,
Chern-Simons theories, and the quantum Hall effect.
