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quant-ph2026
Quantum sensing of aging transitions
Huining Zhang, Yunbo Zhang, Xiaoguang Wang +1
The aging transition is a critical phenomenon in which collective dynamics deteriorate as the fraction of inactive quantum nodes exceeds a threshold, referred to as the aging trans…
quant-ph2025
Mixed-State Berry Curvature in quantum multiparameter estimations
Xiaoguang Wang, Xiao-Ming Lu, Yunbo Zhang +2
For pure states, the quantum Berry curvature was well studied. However, the quantum curvature for mixed states has received less attention. From the concept of symmetric logarithmi…