  We propose a simple way to stabilize half-quantum vortices in superconducting
strontium ruthenate, assuming the order parameter is of chiral $p_x + ip_y$
symmetry, as is suggested by recent experiments. The method, first given by
Salomaa and Volovik in the context of Helium-3, is very naturally suited for
strontium ruthenate, which has a layered, quasi-two-dimensional, perovskite
crystal structure. We propose possible experiments to detect their non
abelian-braiding statistics. These experiments are of potential importance for
topological quantum computation.
