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arXiv 1903.04444gr-qchep-th
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测前电动力学中时间和长度的观测者测量

Observers' measurements of time and length in premetric electrodynamics

Christian Pfeifer

摘要:

观察者的概念和他们的测量与时空的洛伦兹度规几何紧密相连,而时空的洛伦兹度规几何又源于麦克斯韦电动力学的对称性。修改其中一个,另一个,或两个成分,以我们现代对物理学的理解,还需要重新表述所使用的观察者模型。在这篇演讲中,我们将考虑一个广义的电动力学理论,所谓的局部和线性预度规,或面积度规,电动力学及其相应的时空结构。在此基础上,我们将描述观察者对时间和空间长度的测量。一个一般的算法如何确定观察员的测量将概述和明确适用于一阶premetric微扰麦克斯韦电动力学。后者包含例如最小标准模型扩展的光子扇区。理解了观察者对时间和长度的测量后,我们将推导出相对论性的可观测量,时间膨胀和长度收缩。在未来,将对狭义相对论的经典检验进行现代相对论描述,包括一致的观察者模型。

英文摘要:

The notion of observers' and their measurements is closely tied to the Lorentzian metric geometry of spacetime, which in turn has its roots in the symmetries of Maxwell's theory of electrodynamics. Modifying either the one, the other, or both ingredients to our modern understanding of physics, requires also a reformulation of the observer model used. In this presentation we will consider a generalized theory of electrodynamics, so called local and linear premetric, or area metric, electrodynamics and its corresponding spacetime structure. On this basis we will describe an observer's measurement of time and spatial length. A general algorithm how to determine observer measurements will be outlined and explicitly applied to a first order premetric perturbation of Maxwell electrodynamics. The later contains for example the photon sector of the minimal standard model extension. Having understood an observer's measurement of time and length we will derive the relativistic observables time dilation and length contraction. In the future a modern relativistic description of the classical tests of special relativity shall be performed, including a consistent observer model.

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。

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