1.9k citations · 9.3k across the 93 of their papers we have counts for
96 papers
Quantum information processing under maximal distance measures
Bartosz Regula, Ludovico Lami, Mario Berta +1
The measures of distance frequently used in quantum information, such as trace distance or fidelity-based purified distance, are the smallest extensions of the corresponding distan…
Approximate majorization and high-order capacity of quantum depolarizing channels
Zhiwei Song, Xin Wang, Marco Tomamichel +1
A central challenge in quantum information theory is to determine whether entanglement provides an advantage for information processing when coherent operations across multiple cha…
Second-Order Expansion of Privacy Amplification Under f-Divergence Criteria
Mario Berta, Hao-Chung Cheng, Marco Tomamichel
We derive the second-order asymptotics of randomness extraction from memoryless sources with side information under security criteria based on a broad class of Csiszàr f-divergence…
Error exponent of activated non-signaling assisted classical-quantum channel coding
Aadil Oufkir, Marco Tomamichel, Mario Berta
We provide a tight asymptotic characterization of the error exponent for classical-quantum channel coding assisted by activated non-signaling correlations. Namely, we find that the…
Continuity of entropies via integral representations
Mario Berta, Ludovico Lami, Marco Tomamichel
We show that Frenkel's integral representation of the quantum relative entropy provides a natural framework to derive continuity bounds for quantum information measures. Our main g…
Mixed-state additivity properties of magic monotones based on quantum relative entropies for single-qubit states and beyond
Roberto Rubboli, Ryuji Takagi, Marco Tomamichel
We prove that the stabilizer fidelity is multiplicative for the tensor product of an arbitrary number of single-qubit states. We also show that the relative entropy of magic become…