Experimental demonstration  of continuous variable  cloning with phase-conjugate inputs

Metin Sabuncu; Ulrik Lund Andersen; G. Leuchs

doi:10.1103/PhysRevLett.98.170503

Experimental demonstration of continuous variable cloning with phase-conjugate inputs

Metin Sabuncu, Ulrik Lund Andersen, G. Leuchs

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Abstract

We report the first experimental demonstration of continuous variable cloning of phase-conjugate coherent states as proposed by Cerf and Iblisdir [Phys. Rev. Lett. 87, 247903 (2001)]. In contrast to this proposal, the cloning transformation is accomplished using only linear optical components, homodyne detection, and feedforward. As a result of combining phase conjugation with a joint measurement strategy, superior cloning is demonstrated with cloning fidelities reaching 89%.

Original language	English
Journal	Physical Review Letters
Volume	98
Issue number	17
Pages (from-to)	170503
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.98.170503
Publication status	Published - 2007

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abstract = "We report the first experimental demonstration of continuous variable cloning of phase-conjugate coherent states as proposed by Cerf and Iblisdir [Phys. Rev. Lett. 87, 247903 (2001)]. In contrast to this proposal, the cloning transformation is accomplished using only linear optical components, homodyne detection, and feedforward. As a result of combining phase conjugation with a joint measurement strategy, superior cloning is demonstrated with cloning fidelities reaching 89%.",

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