2000/12/21 by Frédéric Grosshans, Philippe Grangier · 2 citations
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.64.010301
published as Phys. Rev. A 64, 010301 (2001) · 4 pages, 1 figure, submitted to Phys. Rev. A
arxiv created 2000/12/21 · arxiv updated 2016/09/08
We discuss the criteria presently used for evaluating the efficiency of quantum teleportation schemes for continuous variables. Using an argument based upon the difference between 1-to-2 quantum cloning (quantum duplication) and 1-to-infinity cloning (classical measurement), we show that a fidelity value larger than 2/3 is required for successful quantum teleportation of coherent states. This value has not been reached experimentally so far.