Quantum Fidelity Estimation in the Resource Theory of Nonstabilizerness

Nov 20, 2025·
Zhiping Liu
Kun WANG
Kun WANG
,
Xin Wang
· 0 min read
Abstract
This work studies quantum-state fidelity estimation from the perspective of the resource theory of nonstabilizerness. It relates the structure and resource content of a target state to the efficiency of protocols used to estimate its fidelity.
Type
Publication
Physical Review A 112, 052444
publication research
Fidelity Estimation Nonstabilizerness Quantum Resource Theory
Kun WANG
Authors
Kun WANG
Associate Researcher

I am an Associate Researcher and Outstanding Young Talent in the College of Computer Science and Technology, National University of Defense Technology (NUDT).

My research develops practical foundations for reliable and scalable quantum information processing. I work across photonic quantum computing, quantum characterization, verification and validation, distributed quantum estimation, and quantum information theory.

Before joining NUDT, I was a Senior Researcher at the Institute for Quantum Computing, Baidu Research, from 2020 to 2023. I led the development of the Quantum Error Processing (QEP) toolkit for characterizing, mitigating, and correcting errors in quantum devices through software. I received the Shenzhen Industrial Development and Innovation Talent Award in 2023.

Previously, I was a postdoc at the Shenzhen Institute for Quantum Science and Engineering (SIQSE), Southern University of Science and Technology, where I worked with Prof. Masahito Hayashi.