Superluminal telecommunication: an observable contradiction between quantum entanglement and relativistic causality

Are superluminal "signals" an acceptable hypothesis? - Difficulties in building a communication protocol with them

The local hidden variable assumption was repeatedly proved unable to explain results of experiments in which contextuality is involved. Then, the correlated results of measurements of entangled particles, began to be attributed to a communication between particles through so-called "signals". These "signals" need to possess superluminal velocity or move backward in time. No object that has a rest-mass, not even the photons whose rest mass is zero, behave this way. Still, as the nature of the presumed "sinals" is not known, people don't reject the idea, despite the conflict with the theory of r…

因果性与量子力学诠释

Causality and the Interpretation of Quantum Mechanics

针对相对论因果性、量子非定域性与量子测量的长期矛盾，研究基于量子场论提出由约化密度矩阵因果性和完备量子力学诠释构成的框架，证明约化密度矩阵不超光速演化，提出无需额外假设且兼容相对论的量子力学诠释。

量子测量的爱因斯坦因果性在Tomonaga-Schwinger图景中

Einstein causality of quantum measurements in the Tomonaga-Schwinger picture

该研究探讨了量子测量在Tomonaga-Schwinger图景中的爱因斯坦因果性，证明了选择性测量满足任意子交换关系，并展示了非选择性测量的量子无信号性。