Profile
About me
I study the fundamental precision limits of multiparameter quantum estimation and develop quantum-control and error-correction strategies to approach them.
I am an assistant professor at the College of Physics and Optoelectronic Engineering, Shenzhen University. Before joining Shenzhen University, I was a Research Associate (postdoctoral) in the Quantum Control Lab at The Chinese University of Hong Kong.
My work sits at the intersection of quantum metrology, quantum information, and quantum control, with an emphasis on rigorous precision bounds and experimentally relevant protocols.
Current directions
Research
Multiparameter quantum estimation
Precision limits, incompatibility, and optimal strategies for estimating several physical parameters simultaneously.
Quantum measurement and uncertainty
Trade-offs in jointly measuring incompatible observables and their consequences for quantum information processing.
Quantum control and error correction
Control-based and error-corrected protocols that protect or improve metrological precision under realistic dynamics.
Recent activity
Highlights
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Jul 2026
Our companion studies on tight precision trade-offs and constructive optimal measurements appeared in Physical Review Letters and Physical Review A.
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Nov 2024
Our work showing how informative noise can become a metrological resource with error correction was published in Physical Review Letters.
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Oct 2024
Our framework for simultaneously measuring multiple incompatible observables appeared in npj Quantum Information.
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Mar 2024
I joined Shenzhen University as an Assistant Professor in the College of Physics and Optoelectronic Engineering.
Selected work
Selected publications
View all publicationsRecent work focuses on attainable precision trade-offs and constructive optimal measurements for multiparameter estimation. Related directions include incompatible observables, hierarchical measurements, and informative noise as a metrological resource.
Minimal Trade-Off and Optimal Measurement for Multiparameter Quantum Estimation
Physical Review Letters, 137(2), 020804 (2026)
Tight precision trade-offs and constructive optimal measurements for arbitrary pure-state multiparameter estimation.
Quantum Metrology Enhanced by Leveraging Informative Noise with Error Correction
Physical Review Letters, 133(19), 190801 (2024)
Informative noise becomes a metrological resource, with necessary and sufficient conditions for Heisenberg scaling.
Simultaneous measurement of multiple incompatible observables and tradeoff in multiparameter quantum estimation
npj Quantum Information, 10(1), 98 (2024)
Analytical and semidefinite-programming bounds for jointly approximating multiple incompatible observables, with an experimental demonstration.
Information Geometry under Hierarchical Quantum Measurement
Physical Review Letters, 128(25), 250502 (2022)
Analytical bounds on the discrepancy between quantum and classical Fisher information under hierarchical local measurements.
Career and education
Academic path
Appointments and training that shaped my work in quantum estimation, measurement, and control.
Appointments
Assistant Professor
College of Physics and Optoelectronic Engineering, Shenzhen University
Research Associate (postdoctoral)
Quantum Control Lab, The Chinese University of Hong Kong
Advisor: Prof. Haidong Yuan
Education
Ph.D. in Mechanical and Automation Engineering
The Chinese University of Hong Kong
Thesis: Ultimate Precision for Quantum Enhanced Parameter Estimation · Supervisor: Prof. Haidong Yuan
B.Sc. in Physics
Nanjing University
Thesis: Quantum Metrology in a Spin-Magnetic Resonance System · Supervisor: Prof. Shengjun Wu
Get in touch
Contact
- hzchen@outlook.com
- Address
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College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, China
View location