2 papers
quant-ph2026
Experimental certification of the nonlocal advantages of quantum imaginarity
Jian-Hao Wu, Kai-Yu Yuan, Yun-Xiang Tian +5
Quantum imaginarity is a distinct resource in quantum information theory, yet its nonlocal properties have not been fully explored. Here, we report an experimental study of the non…
quant-ph2026
Robust device-independent characterization of sharpness and incompatibility of unsharp instruments
Qian Zhang, Kai-Yu Yuan, Yan-Xin Rong +3
Unsharp measurements are key resources for tasks that balance information gain and disturbance, but certifying them without device assumptions remains a challenge. We propose a ful…