电磁学与时间不对称
Electromagnetism and time-asymmetry
摘要:
在一个由狭义相对论或广义相对论控制的世界里,观察者只能接触到她过去光锥内的数据(如果有的话),这是一个老生常谈的问题。然而,这对于预测的重要性,以及因此对于证实的重要性,似乎并没有被认识到。在这篇论文中,我将说明,我们所认为的最可靠的相对论理论,即麦克斯韦的电磁理论,如果没有一个附加的假设,即所有场都在其过去有源的假设,就根本不能得到可靠的证实。我的结论是,我们有理由相信世界上存在着一种类似于规律的时间不对称性。
英文摘要:
It is a commonplace to note that in a world governed by special or general relativity, an observer has access only to data within her past lightcone (if that). The significance of this for prediction, and thus for confirmation, does not however seem to have been appreciated. In this paper I show that what we regard as our most well-confirmed relativistic theory, Maxwell's theory of electromagnetism, is not at all well-confirmed in the absence of an additional assumption, the assumption that all fields have sources in their past. I conclude that we have reason to believe that there is a lawlike time-asymmetry in the world.
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。