High fidelity teleportation between light and atoms

Details High fidelity teleportation between light and atoms High fidelity teleportation between light and atoms

2006-08-17

arxiv.org/abs/quant-ph/0608133v2

PRA 74, 064301 (2007)

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

10.1103/PhysRevA.74.064301

We show how high fidelity quantum teleportation of light to atoms can be achieved in the same setup as was used in the recent experiment [J. Sherson et.al., quant-ph/0605095, accepted by Nature], where such an inter-species quantum state transfer was demonstrated for the first time. Our improved protocol takes advantage of the rich multimode entangled structure of the state of atoms and scattered light and requires simple post-processing of homodyne detection signals and squeezed light in order to achieve fidelities up to 90% (85%) for teleportation of coherent (qubit) states under realistic experimental conditions. The remaining limitation is due to atomic decoherence and light losses.

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