Several experimental realizations of symmetric phase-covariant quantum cloner of single-photon qubits

Details Several experimental realizations of symmetric phase-covariant quantum cloner of single-photon qubits Several experimental realizations of symmetric phase-covariant quantum cloner of single-photon qubits

2007-06-08

arxiv.org/abs/0706.1267v1

Phys. Rev. A 76, 042318 (2007)

Physics

Quantum Physics

8 pages, 11 figures

Scientific paper

10.1103/PhysRevA.76.042318

We compare several optical implementations of phase-covariant cloning machines. The experiments are based on copying of the polarization state of a single photon in bulk optics by special unbalanced beam splitter or by balanced beam splitter accompanied by a state filtering. Also the all-fiber based setup is discussed, where the information is encoded into spatial modes, i.e., the photon can propagate through two optical fibers. Each of the four implementations possesses some advantages and disadvantages that are discussed.

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