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Quantum scissors: teleportation of single-mode optical states by means of a nonlocal single photon

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arxiv quant-ph/0208066 v1 pith:JIBFG7KQ submitted 2002-08-12 quant-ph

classification quant-ph
keywords quantummeansphotonstatesscissorssinglesingle-modestate
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We employ the quantum state of a single photon entangled with the vacuum (|1,0>-|0,1>), generated by a photon incident upon a symmetric beam splitter, to teleport single-mode quantum states of light by means of the Bennett protocol. Teleportation of coherent states results in truncation of their Fock expansion to the first two terms. We analyze the teleported ensembles by means of homodyne tomography and obtain fidelities of up to 99 per cent for low source state amplitudes. This work is an experimental realization of the quantum scissors device proposed by Pegg, Phillips and Barnett (Phys. Rev. Lett. 81, 1604 (1998))

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