Maxwell-Kosteleckt电磁学与宇宙磁化
Maxwell-Kostelecký Electromagnetism and Cosmic Magnetization
摘要：
标准模型扩展中光子部分的洛伦兹破坏项$\mathcal{L}_K = -{$ \frac 14 $} (k_F)_{αβμν} F^{αβ} F^{μν}$（这里称为Kostelecklett项）打破了电磁学的共形不变性，并使暴胀期间的磁真空涨落超绝热放大。对于定义洛伦兹对称性破坏和暴胀的参数的广泛值，当今的磁场可以在兆秒差距尺度上具有纳米级的强度，然后可以解释宇宙的大尺度磁化。
英文摘要：
The Lorentz violating term in the photon sector of Standard Model Extension, $\mathcal{L}_K = -{$\frac14$} (k_F)_{αβμν} F^{αβ} F^{μν}$ (here referred to as the Kostelecký term), breaks conformal invariance of electromagnetism and enables a superadiabatic amplification of magnetic vacuum fluctuations during inflation. For a wide range of values of parameters defining Lorentz symmetry violation and inflation, the present-day magnetic field can have an intensity of order of nanogauss on megaparsec scales and then could explain the large-scale magnetization of the universe.
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