4 papers
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…
Variational Graphical Quantum Error Correction Codes
Yuguo Shao, Yong-Chang Li, Fuchuan Wei +5
Quantum error correction is essential for achieving fault-tolerant quantum computation. However, most typical quantum error-correcting codes are designed for generic noise models,…
Experimental 3D super-localization with Laguerre-Gaussian modes
Chenyu Hu, Liang Xu, Ben Wang +4
Improving three-dimensional (3D) localization precision is of paramount importance for super-resolution imaging. By properly engineering the point spread function (PSF), such as ut…