Michael H. Freedman, Alexei Kitaev, Michael J. Larsen, Zhenghan Wang. Topological quantum computation, Bull. Amer. Math. Soc. 40 (2003), 31-38, web, pdf

M. Freedman, M. Larsen, and Z. Wang, A modular functor which is universal for quantum computation, Comm. Math. Phys. 227 (2002), no. 3, 605-622, pdf