Author

Mario Berta

h-index 6 View on Semantic Scholar

We have 2 of 18 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

Second-Order Expansion of Privacy Amplification Under f-Divergence Criteria

We derive the second-order asymptotics of randomness extraction from memoryless sources with side information under security criteria based on a broad class of Csisz\`ar f-divergences, treating both a fixed reference side-information marginal and optimization over that marginal. The conditional varentropy decomposes in...

Mario Berta, Hao-Chung Cheng, M. Tomamichel · 1 citation

Preprint Aug 2026

Strong Converse Exponent of Quantum State Merging

We determine the strong converse exponent for the entanglement cost of quantum state merging, showing that it is characterized by the optimized $\alpha$-$z$ conditional R\'enyi entropies with $z=\alpha/2\in[1/2,1]$. This contrasts with the sandwiched conditional R\'enyi entropies that typically govern strong converse e...

Mario Berta, Hao-Chung Cheng, Roberto Rubboli et al. · 2 citations · ⚡1