Abstract
As demonstrated by E. Knill et al. [Nature 409, 46 (2001)], quantum teleportation and quantum logic gates with a success probability close to one can be implemented using only linear optical elements, additional photons, and post-selection. To do this, it is desirable to have special quantum channels in sight before quantum teleportation performance. Here, we propose an experimental arrangement to generate a two-photon KLM state different from the well-known Bell states. This two-photon KLM state can be used to enhance the success probability of the quantum teleportation of a one-mode quantum qubit from 0.5 up to 2/3.
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From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 82, No. 7, 2005, pp. 513–515.
Original English Text Copyright © 2005 by Podoshvedov.
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Podoshvedov, S.A. Generation of a two-photon KLM quantum channel. Jetp Lett. 82, 459–462 (2005). https://doi.org/10.1134/1.2142878
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DOI: https://doi.org/10.1134/1.2142878