Realization of a universal and phase-covariant quantum cloning machine in separate cavities

We present a scheme to realize a special quantum cloning machine in separate cavities. The quantum cloning machine can copy the quantum information from a photon pulse to two distant atoms. Choosing the different parameters, the method can perform optimal symmetric (asymmetric) universal quantum clo...

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Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-04, Vol.83 (4), Article 042309
Main Authors: Fang, Bao-Long, Song, Qing-Ming, Ye, Liu
Format: Article
Language:English
Subjects:
ASYMMETRY
ATOMS
BOSONS
CAVITIES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELEMENTARY PARTICLES
INFORMATION
MASSLESS PARTICLES
PHASE STUDIES
PHOTONS
PULSES
QUANTUM INFORMATION
SYMMETRY
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description We present a scheme to realize a special quantum cloning machine in separate cavities. The quantum cloning machine can copy the quantum information from a photon pulse to two distant atoms. Choosing the different parameters, the method can perform optimal symmetric (asymmetric) universal quantum cloning and optimal symmetric (asymmetric) phase-covariant cloning.
doi_str_mv 10.1103/PhysRevA.83.042309
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subjects ASYMMETRY
ATOMS
BOSONS
CAVITIES
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELEMENTARY PARTICLES
INFORMATION
MASSLESS PARTICLES
PHASE STUDIES
PHOTONS
PULSES
QUANTUM INFORMATION
SYMMETRY
title Realization of a universal and phase-covariant quantum cloning machine in separate cavities
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