Sequential Quantum Teleportation of Optical Coherent States

Details Sequential Quantum Teleportation of Optical Coherent States Sequential Quantum Teleportation of Optical Coherent States

2007-05-21

arxiv.org/abs/0705.2931v1

Phys. Rev. A 76, 032305 (2007)

Physics

Quantum Physics

5page, 4figures

Scientific paper

10.1103/PhysRevA.76.032305

We demonstrate a sequence of two quantum teleportations of optical coherent states, combining two high-fidelity teleporters for continuous variables. In our experiment, the individual teleportation fidelities are evaluated as F_1 = 0.70 \pm 0.02 and F_2 = 0.75 \pm 0.02, while the fidelity between the input and the sequentially teleported states is determined as F^{(2)} = 0.57 \pm 0.02. This still exceeds the optimal fidelity of one half for classical teleportation of arbitrary coherent states and almost attains the value of the first (unsequential) quantum teleportation experiment with optical coherent states.

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