Da-Jian Zhang, male, is a professor and doctoral supervisor. He has been selected as a recipient of the Shandong Provincial Excellent Young Scientists Fund, a Jinan Leading Talent, and a Qilu Young Scholar of Shandong University. He serves as a member of the National Expert Committee on Electronic Information Materials and Devices, a member of the Quantum Science and Technology Committee of the Shandong Physical Society, and a member of the Faculty Advisory Group for the Physics Track of the Basic Disciplines Talent Program at Shandong University. His research focuses on the fundamental theory of quantum information, with particular emphasis on efficient information extraction from complex quantum systems. His representative contributions include the following. First, he proposed the theory of Krylov shadow tomography, which combines Krylov subspace methods with shadow tomography and establishes a hierarchy of efficiently measurable lower bounds that can exactly match the quantum Fisher information, thereby providing a new theoretical framework for the accurate estimation of quantum Fisher information in complex quantum systems. Second, he developed symmetry-based quantum measurement optimization methods, revealing the mechanism by which symmetries in many-body quantum systems can lead to exponential improvements in measurement efficiency. He further established a theoretical framework connecting global and local estimation, offering a new perspective for overcoming the measurement-efficiency bottleneck in large-scale quantum systems. Third, he established a framework for estimating quantum coherence from limited measurement data, enabling optimal estimation of the coherence of unknown quantum states based on incomplete measurement data. He also proposed a coherence-enhanced noise-resilient quantum thermometry scheme, promoting the transition of quantum coherence from quantitative characterization to resource-based utilization. He has published a series of papers in leading physics journals, including Physical Review Letters, npj Quantum Information, Physical Review Research, and Physical Review A/B. Many of these works were completed with him as the sole first author or corresponding author. His research achievements have received high recognition from peers in China and abroad. As one of the principal contributors, he received the First Prize of the Natural Science Award of Shandong Province. His work was selected as one of the landmark achievements of Shandong Province’s information technology industry over the past 60 years, and some of his results have been included in English-language monographs. In teaching and talent cultivation, he has long been responsible for teaching core undergraduate courses such as Quantum Mechanics. He has received honors including the First Prize in the Young Teachers’ Teaching Competition of Shandong University and the Outstanding Young Teacher Award of Shandong University. He has also participated in the cultivation of top innovative talents at the Taishan College. Under his supervision, undergraduate students have been awarded funding from Shandong University’s Fundamental Research Program for Young Students.

Exploring the fundamental principles of nature, and revealing the beauty of mathematics and physics. Our group welcomes applications from prospective graduate students and doctoral candidates on a long-term basis. We are devoted to theoretical research and are looking for students who share a passion for pure science and who are willing to pursue physical intuition through equations and logic. You are warmly welcome to join us on this journey of discovery in theoretical physics. 

For postdoctoral positions, please refer to the official postdoctoral recruitment notice of Shandong University