Efficient construction of quantum computational clusters using Hadamard rotations

A method of creating two-dimensional quantum computational cluster states is demonstrated that is considerably more efficient than previously proposed approaches. The method uses local unitaries and type-I fusion operations. The increased efficiency of the method compared to previously proposed constructions is obtained by identifying and exploiting local equivalence properties inherent in cluster states.

Patent #: 7711028 Issue Date: August 17, 2010