Improved Heralded Schemes to Generate Entangled States From Single Photons
Quantum Physics
2020-07-08 v2
Abstract
We present a novel semi-analytical methodology to construct optimal linear optical circuits for heralded production of 3-photon GHZ and 2-photon Bell states. We provide a detailed description and analysis of the resulting optical schemes, which deliver success probabilities of 1/54 and 2/27 for dual-rail encoded 3-GHZ and Bell states generation, respectively. Our results improve the known constructive bounds on the success probabilities for 3-GHZ states and are of particular importance for a ballistic quantum computing model, for which these states provide an essential resource.
Keywords
Cite
@article{arxiv.2004.02691,
title = {Improved Heralded Schemes to Generate Entangled States From Single Photons},
author = {F. V. Gubarev and I. V. Dyakonov and M. Yu. Saygin and G. I. Struchalin and S. S. Straupe and S. P. Kulik},
journal= {arXiv preprint arXiv:2004.02691},
year = {2020}
}
Comments
8 pages, 7 figures