新的能量动量张量和Angular Momentum张量及其在核子结构中的应用
New Energy-Momentum and Angular Momentum Tensors with Applications to Nucleon Structure
摘要：
提出了一种新的能量动量张量和角动量张量。它们是由量子测量中的一个特殊考虑激发的：给定一个波在多个物理观测量的互本征态中，相应的物理电流应该彼此成比例。有趣的是，这个判据否定了传统的能量动量张量的正则表达式和对称表达式，以及与之相关的角动量张量的表达式。我们提出的新张量可以从一个具有二阶导数的拉格朗日量导出为Noether流，为核子结构的研究提供了新的思路。
英文摘要：
We present a new type of energy-momentum tensor and angular momentum tensor. They are motivated by a special consideration in quantum measurement: Given a wave in mutual eigen-state of more than one physical observables, the corresponding physical currents should be proportional to each other. Interestingly, this criterion denies the traditional canonical and symmetric expressions of energy-momentum tensor and their associated expressions of angular momentum tensor. The new tensors we propose can be derived as Noether currents from a Lagrangian with second derivative, and shed new light on the study of nucleon structures.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
