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Quantum circuits with uniformly controlled one-qubit gates
Ville Bergholm, Juha J. Vartiainen, Mikko Mottonen +1
Uniformly controlled one-qubit gates are quantum gates which can be represented as direct sums of two-dimensional unitary operators acting on a single qubit. We present a quantum g…
Transformation of quantum states using uniformly controlled rotations
Mikko Mottonen, Juha J. Vartiainen, Ville Bergholm +1
We consider a unitary transformation which maps any given state of an -qubit quantum register into another one. This transformation has applications in the initialization of a q…
Quantum Circuits for General Multiqubit Gates
Mikko Mottonen, Juha J. Vartiainen, Ville Bergholm +1
We consider a generic elementary gate sequence which is needed to implement a general quantum gate acting on n qubits -- a unitary transformation with 4^n degrees of freedom. For s…