Quantum cloning machines for equatorial qubits
Quantum Physics
2009-11-07 v4
Abstract
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.
Keywords
Cite
@article{arxiv.quant-ph/0101101,
title = {Quantum cloning machines for equatorial qubits},
author = {Heng Fan and Keiji Matsumoto and Xiang-Bin Wang and Miki Wadati},
journal= {arXiv preprint arXiv:quant-ph/0101101},
year = {2009}
}
Comments
Revtex, 9 pages