Experimental identification of non-classicality of noisy twin beams and other related two-mode states
arXiv:1710.08196 · doi:10.1038/s41598-018-19634-1
Abstract
Different non-classicality criteria expressed in the form of inequalities among intensity moments and elements of photon-number distributions are applied to noisy twin beams and other two-mode states obtained from a twin beam by using a beam splitter. Their performance in revealing the non-classicality is judged in comparison with the exact results provided by suitable entanglement and local non-classicality quantifiers. Whereas the non-classicality of noisy twin beams is always revealed by these criteria, not all the nonclassical states obtained at the output of the beam splitter can be identified by these experimentally easily reachable criteria.
arXiv comment15 pages, 9 figures, accepted for publication in Scientific Reports
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- Experimental quantification of the entanglement of noisy twin beams
- Complete identification of nonclassicality of Gaussian states via intensity moments
- Characterization of nonclassicality of Gaussian states initially generated in optical spontaneous parametric processes by means of induced stimulated emission
- Enhancing entanglement detection of quantum optical frequency combs via stimulated emission