Expressing the operations of quantum computing in multiparticle   geometric algebra
  We show how the basic operations of quantum computing can be expressed and manipulated in a clear and concise fashion using a multiparticle version of geometric (aka Clifford) algebra. This algebra encompasses the product operator formalism of NMR spectroscopy, and hence its notation leads directly to implementations of these operations via NMR pulse sequences. 
Shyamal S. Somaroo, David G. Cory and Timothy F. Havel