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Quantum circuit for three-qubit random states
Olivier Giraud, Marko Znidaric, Bertrand Georgeot
par - 30 mars 2009
We explicitly construct a quantum circuit which exactly generates random three-qubit states. The optimal circuit consists of three CNOT gates and fifteen single qubit elementary rotations, parametrized by fourteen independent angles. The explicit distribution of these angles is derived, showing that the joint distribution is a product of independent distributions of individual angles apart from four angles.