Generalised Maxwell theories - theoretical structure and experimental tests

广义麦克斯韦理论 - 理论结构和实验测试

• 批准号: 505676591
• 负责人: Professor Dr. Claus Lämmerzahl
• 金额: --
• 依托单位: Laboratoire de Physique et Chimie de lEnvironnement (LPCE/CNRS)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/505676591?language=en
• 关键词: Generalised; Maxwell; theories; theoretical; structure

The electromagnetic field is one of the most important system in physics. All the information we are receiving and all measurements we are doing rely on electrodynamics. Though the Maxwell equations provide an extremely successful description of all electromagnetic phenomena there are reasons to reconsider this theory: (i) The standard formulation of electrodynamics leads to severe problems in the self-force problem (radiation reaction) of charged point particles. One derives unphysical pre-acceleration as well as run-away solutions. (ii) In constructive axiomatic approaches to establish the space-time geometry of General (and Special) Relativity the unique properties of light play an essential role. Any modification of the phenomena of electrodynamics will also be directly related to a modified space-time geometry. This is also related to (iii) the search for a theory of Quantum Gravity. Since according to our present understanding General Relativity and Quantum Theory are theoretically not compatible, a new theory combining the geometric and quantum aspects of our world has to be different from at least one of these theories what, for consistency, also would change the Maxwell equations. Accordingly, it is of utmost importance to find out whether the equations underlying all electromagnetic phenomena are the well-known Maxwell equations or whether one has to take into account modifications.Accordingly, we have to discuss all possible modifications in a structured way and then to explore the experimental significance of these modifications. Thereby we will proceed in a systematic way in that we discuss non-linear, non-local and non-homogeneous extensions of the Maxwell equations. For these modifications we discuss wave propagation, stationary solutions for point sources, the equation of motion for charged particles including self-force, the hydrogen atom, and the Equivalence Principle for electromagnetically bound systems. Whereas the planned investigation is theoretical, it will also be of high relevance in view of experiments: It will provide additional or new interpretations of experiments that have already been done, and it will also suggest new experiments dedicated to particular aspects of the Maxwell equations. If it turns out that there might be modifications of these equations all measurements and observations have to be re-interpreted.Orléans and Bremen are amongst the most active groups worldwide in this research area. This project will benefit from a mixture of common and complementary expertise. Both groups are connected to top-level international collaborations. The coordinators, additional applicants together with further co-workers will be a strong collaborating team in order to work on the proposed work plan.

电子场是物理学中最重要的系统之一。我们收到的所有信息以及我们进行的所有测量都依赖于电子设备。尽管麦克斯韦方程对所有电子现象提供了非常成功的描述，但有理由重新考虑这一理论：（i）电子的标准公式导致带电点颗粒的自力更生问题（辐射反应）中的严重问题。一个人衍生出非物理预加速和失败的解决方案。 （ii）在建立一​​般（和特殊）相对论的时空几何形状的建设性公理方法中，光的独特特性起着至关重要的作用。对电子现象的任何修改也将与修改的时空几何形状直接相关。这也与（iii）寻找量子重力理论有关。由于根据我们目前的理解，一般的相对论和量子理论在神秘上不兼容，因此，结合我们世界的几何和量子方面的新理论必须与至少这些理论中的一种不同，因为一致性，对于一致性而言，也会改变麦克斯韦方程。根据，确定所有电子现象的基础方程是否是著名的麦克斯韦方程，还是必须考虑修改。我们必须以结构化的方式讨论所有可能的修改，然后探索这些修饰的实验意义。因此，我们将以系统的方式进行，因为我们讨论了麦克斯韦方程的非线性，非本地和非均匀扩展。对于这些修改，我们讨论了波传播，点源的固定溶液，包括自力，氢原子在内的带电颗粒的运动等效性以及电子结合系统的等效原理。尽管计划的调查是理论上的，但鉴于实验的观点，它也将具有很高的相关性：它将提供已经进行的实验的其他或新解释，并且还将提出专门针对麦克斯韦方程的特定方面的新实验。如果事实证明，这些方程可能会进行修改，所有测量值和观察结果都必须重新解释。orléans和Bremen，是该研究领域全球最活跃的群体之一。该项目将受益于共同和补充专业知识的混合。两组都与顶级国际合作有关。协调员，其他申请人以及进一步的同事将是一个强大的合作团队，以制定拟议的工作计划。