Jaeger Gregg
Quantum Communication and Measurement Laboratory, Department of Electrical and Computer Engineering, and Division of Natural Science and Mathematics, Boston University, Boston, MA 02215, USA.
Entropy (Basel). 2024 Sep 1;26(9):748. doi: 10.3390/e26090748.
Rudolf Haag's Local Quantum Physics (LQP) is an alternative framework to conventional relativistic quantum field theory for combining special relativity and quantum theory based on first principles, making it of great interest for the purposes of conceptual analysis despite currently being relatively limited as a tool for making experimental predictions. In LQP, the elementary particles are defined as species of causal link between interaction events, together with which they comprise its most fundamental entities. This notion of particle has yet to be independently assessed as such. Here, it is captured via a set of propositions specifying particle characteristics and then compared to previous particle notions. Haag's particle differs decisively with respect to mechanical intuitions about particles by lacking, among other things, even an approximate independent space-time location. This notion is thus found to differ greatly even from those of relativistic quantum mechanics and quantum field theory, which have been applied to the known elementary particles.
鲁道夫·哈格的《局域量子物理学》（LQP）是一种不同于传统相对论量子场论的框架，它基于第一性原理将狭义相对论和量子理论结合起来，尽管目前作为一种进行实验预测的工具相对有限，但出于概念分析的目的，它仍具有极大的吸引力。在LQP中，基本粒子被定义为相互作用事件之间因果联系的种类，它们与这些因果联系共同构成了其最基本的实体。这种粒子概念尚未得到独立评估。在此，它通过一组规定粒子特征的命题来描述，然后与先前的粒子概念进行比较。哈格的粒子在关于粒子的力学直觉方面有决定性的不同，因为它除了其他方面外，甚至缺乏近似独立的时空位置。因此，发现这个概念甚至与那些已应用于已知基本粒子的相对论量子力学和量子场论的概念有很大差异。
