Quantum cloning machines for equatorial qubits

Details Quantum cloning machines for equatorial qubits Quantum cloning machines for equatorial qubits

2001-01-21

arxiv.org/abs/quant-ph/0101101v4

Phys. Rev. A65, 012304(2002).

Physics

Quantum Physics

Revtex, 9 pages

Scientific paper

10.1103/PhysRevA.65.012304

Quantum cloning machines for equatorial qubits are studied. For the case of 1 to 2 phase-covariant quantum cloning machine, we present the networks consisting of quantum gates to realize the quantum cloning transformations. The copied equatorial qubits are shown to be separable by using Peres-Horodecki criterion. The optimal 1 to M phase-covariant quantum cloning transformations are given.

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