23 citations · 82 across the 16 of their papers we have counts for
4 papers · 2 filters
Experimental Joint Estimation of Phase and Phase Diffusion via Deterministic Bell Measurements
Ben Wang, Minghao Mi, Huangqiuchen Wang +2
Accurate phase estimation plays a pivotal role in quantum metrology, yet its precision is significantly affected by noise, particularly phase-diffusive noise caused by phase drift.…
Approaching the Multiparameter Quantum Cramér-Rao Bound via Classical Correlation and Entangling Measurements
Minghao Mi, Ben Wang, Lijian Zhang
Multiparameter quantum metrology is essential for a wide range of practical applications. However, simultaneously achieving the ultimate precision for all parameters, as prescribed…
A Geometric Quantum Speed Limit: Theoretical Insights and Photonic Implementation
Qianyi Wang, Ben Wang, Jun Wang +1
Quantum mechanics imposes a lower bound on the time required for a quantum system to reach certain given targets. In this paper, from a geometric perspective, we introduce a new qu…
Quantum Geometric Tensor for Mixed States Based on the Covariant Derivative
Qianyi Wang, Ben Wang, Jun Wang +1
The quantum geometric tensor (QGT) is a fundamental quantity for characterizing the geometric properties of quantum states and plays an essential role in elucidating various physic…