ournal of C osmology and A stroparticle P hysics J Large-scale magnetic fields in the inflationary universe
ournal of C osmology and A stroparticle P hysics J Large-scale magnetic fields in the inflationary universe
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宇宙学和天体粒子物理学杂志 J 暴胀宇宙中的大尺度磁场
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通讯作者：
M. Wittrock
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作者：
M. Wittrock
。暴胀宇宙学研究了大尺度磁场的产生。我们考虑一种非常普遍的情况，其中麦克斯韦场的共形不变性通过 IF 2 形式的耦合被破坏，其中 I 可以是任何随时间变化的非平凡背景场的函数。我们推导出大尺度磁场谱和谱指数的通用公式。结果，我们获得了产生足够大振幅的磁场的一般的、与模型无关的必要条件。然后讨论我们的结果的含义。
. The generation of large-scale magnetic fields is studied in the inflationary cosmology. We consider a very general situation in which the conformal invariance of the Maxwell field is violated through a coupling of the form IF 2 where I can be a function of any non-trivial background fields that vary in time. We derive general formulae for the spectrum of large-scale magnetic fields and the spectral index. As a result, we obtain the general, model-independent necessary condition for the generation of magnetic fields with sufficiently large amplitude. Then the implications of our result are discussed.