Publications

A collection of my research work (🎉 highlight).

Physical Review Letters (premier journal in physics).

PRX Quantum (premier journal in physics).

IEEE Transactions on Information Theory (premier journal in information theory).

IEEE Transactions on Computers (premier journal in computer architectures).

Communications in Mathematical Physics (premier journal in mathematical physics).

Mathematical Programming (premier journal in optimization).

You can also find me on Google Scholar and arXiv. Group members are highlighted below.

Approximate majorization and high-order capacity of quantum depolarizing channels

2026

Zhiwei Song†, Xin Wang†, Marco Tomamichel†, Kun Fang†

arXiv preprint 2026

URLarXivPDF

A pretty-tight converse on the classical capacity of generalized amplitude-damping channels

2026

Kun Fang

arXiv preprint 2026

URLarXivPDF

Entanglement cost of quantum depolarization

2026

Kun Fang

arXiv preprint 2026

URLarXivPDF

Demonstrating advantages of dynamic quantum circuits on a hybrid superconducting qubit–cavity processor

2026

Hongbo Wu, Ling Hu†, Jiasheng Mai, Munan Zhang, Libo Zhang, Yanyan Cai, Xiaowei Deng, Pan Zheng, Zhongchu Ni, Song Liu, Kun Fang†, Dapeng Yu, Yuan Xu†

arXiv preprint 2026

URLarXivPDF

Quantum thermodynamics with uncertainty

2026

Munan Zhang, Kun Fang†

arXiv preprint 2026

URLarXivPDF

Operational interpretation of the reverse sandwiched Renyi divergences in composite quantum hypothesis testing

2026

Masahito Hayashi†, Kun Fang†

arXiv preprint 2026

URLarXivPDF

Minimax games for quantum channel discrimination

2026

Kun Fang, Michael X. Cao, Hao-Chung Cheng, Li Gao, Masahito Hayashi

arXiv preprint 2026

URLarXivPDF

Finite-blocklength and exponential analyses for universal entanglement and coherence distillation under various free operations

2026

Zhiwen Lin†, Ke Li†, Kun Fang†

arXiv preprint 2026

Presented at ISIT 2026 at a talk

URLarXivPDF

Generalized quantum asymptotic equipartition

🎉

2026

Kun Fang, Hamza Fawzi, Omar Fawzi

Communications in Mathematical Physics 2026

Presented at QIP 2025 as a talk, AQIS 2025 and BIID 2025 as long talks

URLarXivPDFSlidesVideo

Estimating quantum relative entropies on quantum computers

2026

Yuchen Lu, Kun Fang†

Communications Physics 2026

URLarXivPDF

One-shot distillation with constant overhead using catalysts

🎉

2026

Kun Fang, Zi-Wen Liu

Nature Communications 2026

Presented at AQIS 2025 as a talk

URLarXivPDFSlides

Error exponents of quantum state discrimination with composite correlated hypotheses

🎉

2026

Kun Fang, Masahito Hayashi

IEEE Transactions on Information Theory 2026

CCF-A Journal; To present at ISIT 2026 and BIID 2026 as talks

URLarXivPDFSlides

Efficient approximation of regularized relative entropies and applications

2026

Kun Fang, Hamza Fawzi, Omar Fawzi

IEEE Transactions on Information Theory 2026

CCF-A Journal; Presented at QIP 2025 as a talk

URLarXivPDFSlidesVideo

Uhlmann's theorem for measured divergences

2026

Kun Fang, Hamza Fawzi, Omar Fawzi

IEEE Transactions on Information Theory 2026

CCF-A Journal

URLarXivPDF

Dynamic quantum circuit compilation

🎉

2026

Kun Fang, Munan Zhang, Ruqi Shi, Yinan Li

IEEE Transactions on Computers 2026

CCF-A Journal

URLarXivPDFSlides

Quantum information theory: quantum entropies and their roles in quantum information processing

2026

Kun Fang, Masahito Hayashi

Elsevier 2026

Invited Book Chapter (in press)

URLPDF

Exponential analysis for entanglement distillation

2026

Zhiwen Lin†, Ke Li†, Kun Fang†

IEEE International Symposium on Information Theory 2026

Presented at ISIT 2026 as a talk*

URLPDF

Upper bound on entanglement distillation via Riemannian optimization

2026

Chengkai Zhu, Hongyu Mao, Kun Fang†, Xin Wang†

IEEE International Symposium on Information Theory 2026

Presented at ISIT 2026 as a talk*

URLPDF

Generalized quantum Chernoff bound

2026

Kun Fang, Masahito Hayashi

IEEE International Symposium on Information Theory 2026

Presented at ISIT 2026 as a talk

URLPDF

Error exponents of quantum state discrimination with composite correlated hypotheses

2026

Kun Fang, Masahito Hayashi

IEEE International Symposium on Information Theory 2026

Presented at ISIT 2026 as a talk

URLPDF

Quantum channel discrimination against jammers

2026

Kun Fang, Michael X. Cao

IEEE International Symposium on Information Theory 2026

Presented at ISIT 2026 as a talk*

URLPDF

Generalized quantum Chernoff bound

🎉

2025

Kun Fang, Masahito Hayashi

arXiv preprint 2025

Presented at ISIT 2026 and BIID 2026 as talks

URLarXivPDFSlides

Geometric optimization for quantum communication

2025

Chengkai Zhu, Hongyu Mao, Kun Fang†, Xin Wang†

arXiv preprint 2025

Presented at ISIT 2026 and TQC 2026 as talks

URLarXivPDF

Adversarial quantum channel discrimination

🎉

2025

Kun Fang, Hamza Fawzi, Omar Fawzi

Physical Review Letters 2025

Presented at QIP 2025 as a talk; Highlighted by NSFC

URLarXivPDFSlidesVideo

Finite-key analysis of quantum key distribution with characterized devices using entropy accumulation

2025

Ian George, Jie Lin, Thomas van Himbeeck, Kun Fang, Norbert Lütkenhaus

Quantum 2025

URLarXivPDF

Practical limits on entanglement manipulation

🎉

2025

Kun Fang

Nature Physics 2025

Invited news & views article

URLPDF

Towards the ultimate limits of quantum channel discrimination and quantum communication

2025

Kun Fang, Gilad Gour, Xin Wang

SCIENCE CHINA Information Sciences 2025

CCF-A Journal

URLarXivPDF

Single-shot entanglement manipulation of states and channels revisited

2025

Thomas Theurer, Kun Fang, Gilad Gour

IEEE Transactions on Information Theory 2025

CCF-A Journal; Presented at QIP 2024 as a talk*

URLarXivPDFVideo

Symmetry-based quantum circuit mapping

2024

Di Yu, Kun Fang†

Physical Review Applied 2024

Presented at Shenzhen-Nagoya Workshop on Quantum Science

URLarXivPDFSlides

Quantum NETwork: from theory to practice

2023

Kun Fang, Jingtian Zhao, Xiufan Li, Yifei Li, Runyao Duan

SCIENCE CHINA Information Sciences 2023

CCF-A Journal

URLarXivPDFVideo

No-go theorems for quantum resource purification: new approach and channel theory

2022

Kun Fang, Zi-Wen Liu

PRX Quantum 2022

Presented at QIP 2021, TQC 2021 as talks*

URLarXivPDFVideo

Geometric Rényi divergence and its applications in quantum channel capacities

🎉

2021

Kun Fang, Hamza Fawzi

Communications in Mathematical Physics 2021

Presented at QIP 2020, BIID 2020, AQIS 2020, TQC 2021 as talks

URLarXivPDFSlidesVideo

Finite block length analysis on quantum coherence distillation and incoherent randomness extraction

2021

Masahito Hayashi, Kun Fang†, Kun Wang

IEEE Transactions on Information Theory 2021

CCF-A Journal; Presented at BIID 2020, AQIS 2020, ISIT 2021 as talks*

URLarXivPDFSlidesVideo

The sum-of-squares hierarchy on the sphere and applications in quantum information theory

🎉

2021

Kun Fang, Hamza Fawzi

Mathematical Programming 2021

Presented at ICCOPT 2019 as a talk

URLarXivPDFSlidesVideo

Finite block length analysis on quantum coherence distillation and incoherent randomness extraction

2021

Masahito Hayashi, Kun Fang†, Kun Wang

IEEE International Symposium on Information Theory 2021

Presented at ISIT 2021 as a talk*

URLPDFSlides

No-go theorems for quantum resource purification

🎉

2020

Kun Fang, Zi-Wen Liu

Physical Review Letters 2020

Editors' Suggestion & Featured in Physics; Presented at QIP 2021, TQC 2021 as talk*

URLarXivPDFVideo

Quantum channel simulation and the channel's smooth max-information

2020

Kun Fang, Xin Wang, Marco Tomamichel, Mario Berta

IEEE Transactions on Information Theory 2020

CCF-A Journal; Presented at ISIT 2018, TQC 2018, BIID 2018 as talks

URLarXivPDFSlidesVideo

Chain rule for the quantum relative entropy

🎉

2020

Kun Fang, Omar Fawzi, Renato Renner, David Sutter

Physical Review Letters 2020

Presented at QIP 2020, BIID 2020, AQIS 2020 as talks

URLarXivPDFSlidesVideo

The complementary information principle of quantum mechanics

2019

Yunlong Xiao†, Kun Fang†, Gilad Gour†

arXiv preprint 2019

Presented at AQIS 2019 as a talk

URLarXivPDFSlides

One-shot entanglement distillation beyond local operations and classical communication

2019

Bartosz Regula†, Kun Fang†, Xin Wang†, Mile Gu†

New Journal of Physics 2019

URLarXivPDF

Non-asymptotic entanglement distillation

2019

Kun Fang, Xin Wang, Marco Tomamichel, Runyao Duan

IEEE Transactions on Information Theory 2019

CCF-A Journal; Presented at AQIS 2017 as a long talk (top 10%)

URLarXivPDFSlides

On converse bounds for classical communication over quantum channels

2019

Xin Wang†, Kun Fang†, Marco Tomamichel†

IEEE Transactions on Information Theory 2019

CCF-A Journal; Presented at QIP 2018 as a talk*

URLarXivPDFSlidesVideo

Semidefinite programming converse bounds for quantum communication

2019

Xin Wang†, Kun Fang†, Runyao Duan†

IEEE Transactions on Information Theory 2019

CCF-A Journal; Presented at QIP 2018 as a talk

URLarXivPDFSlidesVideo

Quantum advantages in Hypercube game

2018

Xiaoyu He†, Kun Fang†, Xiaoming Sun†, Runyao Duan†

arXiv preprint 2018

URLarXivPDF

Using and reusing coherence to realize quantum processes

2018

María García Díaz, Kun Fang, Xin Wang, Matteo Rosati, Michalis Skotiniotis, John Calsamiglia, Andreas Winter

Quantum 2018

URLarXivPDF

Probabilistic distillation of quantum coherence

🎉

2018

Kun Fang, Xin Wang, Ludovico Lami, Bartosz Regula, Gerardo Adesso

Physical Review Letters 2018

Presented at AQIS 2018 as a talk*

URLarXivPDFSlides

One-shot coherence distillation

2018

Bartosz Regula†, Kun Fang†, Xin Wang†, Gerardo Adesso†

Physical Review Letters 2018

Presented at AQIS 2018 as a talk*

URLarXivPDFSlides

Quantum channel simulation and the channel's smooth max-information

2018

Kun Fang, Xin Wang, Marco Tomamichel, Mario Berta

IEEE International Symposium on Information Theory 2018

Presented at ISIT 2018 as a talk

URLPDFSlides

On finite blocklength converse bounds for classical communication over quantum channels

2018

Xin Wang†, Kun Fang†, Marco Tomamichel†

IEEE International Symposium on Information Theory 2018

Presented at ISIT 2018 as a talk

URLPDFSlides

Distillation and simulation in quantum information

2018

Kun Fang

PhD Thesis 2018

URLPDF

Approximate broadcasting of quantum correlations

2017

Wei Xie†, Kun Fang†, Xin Wang†, Runyao Duan†

Physical Review A 2017

Presented at AQIS 2017 as a talk

URLarXivPDF