1999/03/31 by Pieter Kok, Samuel L. Braunstein · 3 citations
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.61.042304
published as Phys.Rev.A61:42304,2000 · 11 pages, 4 figures (REVTeX) Phys Rev A, 61, 42304 (2000)
arxiv created 2000/03/07 · arxiv updated 2014/11/18
We study the experimental realisation of quantum teleportation as performed by Bouwmeester \em et al. [Nature \bf 390, 575 (1997)] and the adjustments to it suggested by Braunstein and Kimble [Nature \bf 394, 841 (1998)]. These suggestions include the employment of a detector cascade and a relative slow-down of one of the two down-converters. We show that coincidences between photon-pairs from parametric down-conversion automatically probe the non-Poissonian structure of these sources. Furthermore, we find that detector cascading is of limited use, and that modifying the relative strengths of the down-conversion efficiencies will increase the time of the experiment to the order of weeks. Our analysis therefore points to the benefits of single-photon detectors in non-post-selected type experiments, a technology currently requiring roughly 6∘K operating conditions.