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quant-ph2026
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…
quant-ph2025
Geometric optimization for quantum communication
Chengkai Zhu, Hongyu Mao, Kun Fang +1
Determining the ultimate limits of quantum communication, such as the quantum capacity of a channel and the distillable entanglement of a shared state, remains a central challenge…
quant-ph2021★ 2 cited
Towards the ultimate limits of quantum channel discrimination and quantum communication
Kun Fang, Gilad Gour, Xin Wang
Distinguishability is fundamental to information theory and extends naturally to quantum systems. While quantum state discrimination is well understood, quantum channel discriminat…