Conditional implementation of asymmetrical universal quantum cloning machine

Abstract

We propose two feasible experimental implementations of an optimal asymmetric 1->2 quantum cloning of a polarization state of photon. Both implementations are based on a partial and optimal reverse of recent conditional symmetrical quantum cloning experiments. The reversion procedure is performed only by a local measurement of one from the clones and ancilla followed by a local operation on the other clone. The local measurement consists only of a single unbalanced beam splitter followed in one output by a single photon detector and the asymmetry of fidelities in the cloning is controlled by a reflectivity of the beam splitter.

5 pages, 3 figures, accepted for pulication in PRA

References in corpus (1)

• Teleportation scheme implementing contextually the Universal Optimal Quantum Cloning Machine and the Universal Not Gate. Complete experimental realization

Cited by in corpus (8)

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• Quantum Cloning Machines and the Applications
• Multipartite Asymmetric Quantum Cloning
• Experimental Realization of $1\to 2$ Asymmetric Phase-Covariant Quantum Cloning
• Separating the classical and quantum information via quantum cloning
• Broadcasting of entanglement at a distance using linear optics and telecloning of entanglement
• Optimal multicopy asymmetric Gaussian cloning of coherent states
• Projecting onto any two-photon polarization state using linear optics