Phys. Rev. A 67, 032302 (2003) [4 pages]Experimental investigation of continuous-variable quantum teleportationReceived 31 July 2002; published 10 March 2003 We report the experimental demonstration of quantum teleportation of the quadrature amplitudes of a light field. Our experiment was stably locked for long periods, and was analyzed in terms of fidelity F and with signal transfer Tq=T++T- and noise correlation Vq=Vin| out+Vin| out-. We observed an optimum fidelity of 0.64±0.02, Tq=1.06±0.02, and Vq=0.96±0.10. We discuss the significance of both Tq>1 and Vq<1 and their relation to the teleportation no-cloning limit. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.032302
DOI:
10.1103/PhysRevA.67.032302
PACS:
03.67.Hk, 03.65.Ud, 42.50.Dv, 42.65.Yj
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