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29 March 2024
 
  » arxiv » 2007.8310

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Experimental quantification of the entanglement of noisy twin beams
Vaclav Michalek ; Jan Perina Jr. ; Ondrej Haderka ;
Date 16 Jul 2020
AbstractGradual 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.
Source arXiv, 2007.8310
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