Improving noiseless linear amplification for optical quantum communication with quadrature squeezing
Song Yang, ShengLi Zhang, XuBo Zou, SiWen Bi, and XuLing Lin
Accepted
Quantum noiseless linear amplification(NLA) is an important tool for long distance optical quantum communication. In this paper, we show that NLA with linear optics and photon counts can be further improved by applying quadrature squeezing. Moreover, we find that such enhancement through squeezing can be observed even when photon dichotic on-off detector and pseudo-single photon state are applied to amplification process. Such a result could find more applications in already-known NLA-related quantum information tasks.