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quant-ph2004
A quantum cellular automaton for universal quantum computation
Robert Raussendorf
I describe a quantum cellular automaton capable of performing universal quantum computation. The automaton has an elementary transition function that acts on Margolus cells of $2\t…
quant-ph2004
Long-range quantum entanglement in noisy cluster states
Robert Raussendorf, Sergey Bravyi, Jim Harrington
We describe a phase transition for long-range entanglement in a three-dimensional cluster state affected by noise. The partially decohered state is modeled by the thermal state of…