论文标题
吸收电磁辐射的箭头
Absorbing the Arrow of Electromagnetic Radiation
论文作者
论文摘要
我们认为，电磁波与电磁波的分化和收敛之间的不对称性只是观察到的现象中的许多不对称性之一，可以通过过去的假设和统计假设来解释（共同将概率分配给早期宇宙中的物质和领域的概率）。因此，电磁辐射的箭头被吸收到自然界中时间不对称的更广泛的描述中。 We give an accessible introduction to the problem of explaining the arrow of radiation and compare our preferred strategy for explaining the arrow to three alternatives: (i) modifying the laws of electromagnetism by adding a radiation condition requiring that electromagnetic fields always be attributable to past sources, (ii) removing electromagnetic fields and having particles interact directly with one another through retarded action-at-a-distance, (iii)采用Wheeler-Feynman方法并使颗粒通过半智障的动作直接相互作用。除了发散和融合波之间的不对称性外，我们还考虑了辐射反应的相关不对称性。
We argue that the asymmetry between diverging and converging electromagnetic waves is just one of many asymmetries in observed phenomena that can be explained by a past hypothesis and statistical postulate (together assigning probabilities to different states of matter and field in the early universe). The arrow of electromagnetic radiation is thus absorbed into a broader account of temporal asymmetries in nature. We give an accessible introduction to the problem of explaining the arrow of radiation and compare our preferred strategy for explaining the arrow to three alternatives: (i) modifying the laws of electromagnetism by adding a radiation condition requiring that electromagnetic fields always be attributable to past sources, (ii) removing electromagnetic fields and having particles interact directly with one another through retarded action-at-a-distance, (iii) adopting the Wheeler-Feynman approach and having particles interact directly through half-retarded half-advanced action-at-a-distance. In addition to the asymmetry between diverging and converging waves, we also consider the related asymmetry of radiation reaction.
