New Constructive Counterexamples to Additivity of Minimum Output Rényi p-Entropy of Quantum Channels
Year: 2024
Type: article
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. and we focus on channels characterized by both extensions and subspaces of the antisymmetric subspace in$\mathbb {C}^{d} \otimes \mathbb {C} ^{d}$, which exhibit additivity breaking for$p\gt 2$.
Authors: Krzysztof Szczygielski, Michał Studziński
Institutions: Nicolaus Copernicus University, University of Gdańsk
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4401692638