The need for high-fidelity quantum teleportation arises in a variety of quantum algorithms and protocols. Unfortunately, conventional continuous-variable teleportation schemes rely on Einstein–Podolsky–Rosen states that yield a fidelity that approaches unity only in the limit of an unphysical amount of squeezing. A new method that utilizes an ensemble of single photon entangled states, qubits, to teleport continuous variable (CV) states with fidelity approaching unity with finite resources was recently proposed by Andersen and Ralph [Phys. Rev. Lett. 111, 050504 (2013)]. We extend these ideas to consider the general case of using maximally entangled -level states, qudits, to teleport a CV state and discuss how the corresponding results are affected. In particular, we find that, by using qudits with dimension greater than two, we can achieve a higher fidelity with comparable resources.
© 2014 Optical Society of AmericaFull Article | PDF Article
OSA Recommended Articles
Su-Yong Lee, Jiyong Park, Hai-Woong Lee, and Hyunchul Nha
Opt. Express 20(13) 14221-14233 (2012)
J. Opt. Soc. Am. B 29(7) 1685-1689 (2012)
Song-Yang Wu, Wen-Xue Cui, Zhao Jin, Shou Zhang, and Hong-Fu Wang
J. Opt. Soc. Am. B 34(2) 412-418 (2017)