Efficient Verification of Entangled Measurements with Local States

Jun 19, 2026·
Kun WANG
Kun WANG
,
Masahito Hayashi
· 0 min read
Abstract
We develop a framework for verifying entangled quantum measurements using only local state preparations. For locally transitive and irreducible projective measurements, symmetry reduces the problem to verifying one basis state. The framework gives explicit local protocols for generalized Bell measurements, two-qubit single-parameter measurements, elegant joint measurements, and stabilizer-induced measurements. Homogeneous protocols also estimate measurement fidelity directly from observed passing frequencies.
Type
Publication
arXiv preprint arXiv:2606.21355
publication research
Quantum Measurement Verification Local States Quantum Characterization
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.