  We identify a large family of ground states of a topological Skyrmion magnet
whose classical degeneracy persists to all orders in a semiclassical expansion.
This goes along with an exceptional robustness of the concomitant ground state
configurations, which are not at all dressed by quantum fluctuations. We trace
these twin observations back to a common root: this class of topological ground
states saturates a Bogomolny inequality. A similar phenomenology occurs in
high-energy physics for some field theories exhibiting supersymmetry. We
propose quantum Hall ferromagnets, where these Skyrmions configurations arise
naturally as ground states away from integer filling, as the best available
laboratory realisations.
