2 citations · 4 across the 6 of their papers we have counts for
8 papers
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…
Entanglement cost of quantum depolarization
Kun Fang
Entanglement cost is the asymptotic rate of Bell pairs required to prepare a quantum state. Its regularized definition has made exact evaluation difficult, even for isotropic state…
Minimax games for quantum channel discrimination
Kun Fang, Michael X. Cao, Hao-Chung Cheng +2
Quantum channel discrimination is a primitive task for identifying, verifying, and benchmarking quantum dynamics. Previous studies have primarily considered either the best-case te…
Operational interpretation of the reverse sandwiched Renyi divergences in composite quantum hypothesis testing
Masahito Hayashi, Kun Fang
We study the Hoeffding regime of composite quantum hypothesis testing, in which each hypothesis is specified by a sequence of sets of quantum states. We establish quantum Hoeffding…
Quantum thermodynamics with uncertain equilibrium
Munan Zhang, Kun Fang
The resource-theoretic approach to quantum thermodynamics typically assumes perfect knowledge of the thermal equilibrium state, an idealization incompatible with finite experimenta…
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…
Single-shot entanglement manipulation of states and channels revisited
Thomas Theurer, Kun Fang, Gilad Gour
We study entanglement distillation and dilution of states and channels in the single-shot regime. With the help of a recently introduced conversion distance, we provide compact clo…
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…