Tailoring NonGaussian ContinuousVariable Graph States
Abstract
Graph states are the backbone of measurementbased continuousvariable quantum computation. However, experimental realizations 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 modeselective photon addition and subtraction as viable and experimentally feasible pathways to introduce nonGaussian features in such continuousvariable graph states. In particular, we investigate how the nonGaussian properties spread among the vertices of the graph, which allows us to show the degree of control that is achievable in this approach.
 Publication:

Physical Review Letters
 Pub Date:
 November 2018
 DOI:
 10.1103/PhysRevLett.121.220501
 arXiv:
 arXiv:1804.09444
 Bibcode:
 2018PhRvL.121v0501W
 Keywords:

 Quantum Physics;
 Physics  Optics
 EPrint:
 5 pages, 3 figures