Talk:Negativity (quantum mechanics)

asymptotic continuity - reference/proof?
the article states that the lognegativity is not asymptotically continuous. But I can't find the proof of that statement in the quoted literature. Nor elsewhere. It is stated as a fact in arXiv:1705.03612 (and also in some other articles, e.g., arXiv:2107.08537, arXiv:2111.05109, but in the references quoted there, I can't find the proof either. Can we give a reference for that statement - or is it so obvious that we can just sketch the proof? (It isn't to me, obviously...) --Qcomp (talk) 20:07, 15 November 2021 (UTC)