期刊
QUANTUM
卷 7, 期 -, 页码 -出版社
VEREIN FORDERUNG OPEN ACCESS PUBLIZIERENS QUANTENWISSENSCHAF
DOI: 10.22331/q-2023-09-07-1103
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This paper points out that the proof of the generalised quantum Stein's lemma is not correct due to a gap in the argument leading to Lemma III.9. This raises doubts about several established results in the literature and discusses potential ways to recover the newly unsettled results using other approaches.
We show that the proof of the generalised quantum Stein's lemma [Brandao & Plenio, Commun. Math. Phys. 295, 791 (2010)] is not correct due to a gap in the argument leading to Lemma III.9. Hence, the main achievability result of Brandao & Plenio is not known to hold. This puts into question a number of established results in the literature, in particular the reversibility of quantum entanglement [Brandao & Plenio, Commun. Math. Phys. 295, 829 (2010); Nat. Phys. 4, 873 (2008)] and of general quantum resources [Brandao & Gour, Phys. Rev. Lett. 115, 070503 (2015)] under asymptotically resource non-generating operations. We discuss potential ways to recover variants of the newly unsettled results using other approaches.
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