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. 2016 May 23;6:26523. doi: 10.1038/srep26523

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Copyright © 2016, Macmillan Publishers Limited

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(a) Entanglement invariants [blue dark surface] and (yellow light surface) and (b) local nonclassicality invariants (blue dark surface) and (yellow light surface) as they depend on the mean photon-pair number B_p and the beam-splitter transmissivity T for an initial pure TWB in the scheme of Fig. 3 (only positive values are shown).

Inline graphic — (a) Entanglement invariants [blue dark surface] and (yellow light surface) and (b) local nonclassicality invariants (blue dark surface) and (yellow light surface) as they depend on the mean photon-pair number B_p and the beam-splitter transmissivity T for an initial pure TWB in the scheme of Fig. 3 (only positive values are shown).