Tailoring Non-Gaussian Continuous-Variable Graph States
Quantum Physics
2018-11-30 v2 Optics
Abstract
Graph states are the backbone of measurement-based continuous-variable quantum computation. However, experimental realisations of these states induce Gaussian measurement statistics for the field quadratures, which poses a barrier to obtain a genuine quantum advantage. In this letter, we propose mode-selective photon addition and subtraction as viable and experimentally feasible pathways to introduce non-Gaussian features in such continuous-variable graph states. In particular, we investigate how the non-Gaussian properties spread among the vertices of the graph, which allows us to show the degree of control that is achievable in this approach.
Cite
@article{arxiv.1804.09444,
title = {Tailoring Non-Gaussian Continuous-Variable Graph States},
author = {Mattia Walschaers and Supratik Sarkar and Valentina Parigi and Nicolas Treps},
journal= {arXiv preprint arXiv:1804.09444},
year = {2018}
}
Comments
5 pages, 3 figures