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apr11-offprint-kallin.pdf

The search for new states that exhibit topological order is currently a very active and exciting area of research.  It has been proposed that the superconducting state of Sr2RuO4 has chiral p-wave order, a specific kind of topological order.  Under certain conditions, a chiral p-wave superconductor can support Majorana fermions and non-Abelian statistics, one of the building blocks for models of topological quantum computers.   This paper highlights a few of the recent developments, as well as an open puzzle, in this area.