Experimental quantification of the entanglement of noisy twin beams
Quantum Physics
2020-08-12 v1
Abstract
Gradual loss of the entanglement of a twin beam containing around 25 photon pairs with the increasing external noise is experimentally investigated. The entanglement is quantified by the non-classicality depths and the non-classicality counting parameters related to several non-classicality criteria. The reduction of intensity moments of the analyzed multi-mode twin beams to single-mode ones allows to determine the negativity as another quantifier of the entanglement. Both the raw photocount histograms and the reconstructed photon-number distributions are analyzed in parallel.
Keywords
Cite
@article{arxiv.2007.08310,
title = {Experimental quantification of the entanglement of noisy twin beams},
author = {Vaclav Michalek and Jan Perina and Ondrej Haderka},
journal= {arXiv preprint arXiv:2007.08310},
year = {2020}
}
Comments
7 pages, 4 figures