Generation of Topologically Useful Entangled States
Neil B. Lovett and Benjamin T.H. Varcoe
Measurement based quantum computation requires the generation of a cluster state (quantum resource) prior to starting a computation. Generation of this entangled state can be difficult with many schemes already proposed. We present an abstract scheme which can create 2D cluster states as a universal resource for quantum computing. We find a linear scaling of grid size with cluster depth. The scheme is also capable of creating more exotic topologies including 3D structures and the unit cell for topological error correction. We note its relevance to the cavity QED scheme in  although it could be applied to various architectures.
Keywords: Quantum computation, cluster states, topological error correction