New constructive counterexamples to additivity of minimum output Rényi p-entropy of quantum channels

dc.contributor.author	Szczygielski, Krzysztof
dc.contributor.author	Studziński, Michał
dc.date.accessioned	2024-08-28T06:18:16Z
dc.date.available	2024-08-28T06:18:16Z
dc.date.issued	2024-08-28
dc.identifier.other	10.1109/TIT.2024.3446191
dc.identifier.uri	http://repozytorium.umk.pl/handle/item/7045
dc.description.abstract	In this paper, we present new families of quantum channels for which corresponding minimum output Rényi p-entropy is not additive. Our manuscript is motivated by the results of Grudka et al., J. Phys. A: Math. Theor. 43 425304 and we focus on channels characterized by both extensions and subspaces of the antisymmetric subspace in C^d⊗C^d, which exhibit additivity breaking for p>2.
dc.description.sponsorship	Narodowe Centrum Nauki, grant Sonata 16, UMO-2020/39/D/ST2/01234
dc.language.iso	eng
dc.rights	Attribution 4.0 Poland
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/deed.pl
dc.subject	quantum channels
dc.subject	Rényi p-entropy
dc.subject	minimum output entropy
dc.subject	antisymmetric subspace
dc.title	New constructive counterexamples to additivity of minimum output Rényi p-entropy of quantum channels
dc.type	info:eu-repo/semantics/article