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Quantum scissors: teleportation of single-mode optical states by means of a nonlocal single photon
Preprint
2002-08-12
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Abstract
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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