3 papers
quant-ph2026
Quantum average correlations and complementarity relations via metric-adjusted skew information
Xiaoyu Ma, Qing-Hua Zhang, Cong Xu
We investigate quantum average correlations and complementarity relations based on metric-adjusted skew information. Several natural averaging procedures are considered, including…
quant-ph2026
Quantum average correlation based on average coherence
Xiaoyu Ma, Qing-Hua Zhang, Cong Xu
This paper studies the quantification and structural properties of quantum average correlation based on average coherence. Motivated by two mathematically equivalent approaches to…
quant-ph2025
Entanglement certification from moments of positive maps
Qing-Hua Zhang, Xiaoyu Ma, Shao-Ming Fei
Entanglement certification is crucial in physical experiments, particularly when only partial knowledge of the quantum state is available. In this context, we present an entangleme…