Gertsenshtein效应的一个简单推导
A Simple Derivation of the Gertsenshtein Effect
摘要：
正如Gertsenshtein在1961年所指出的，外部磁场可以催化引力子和光子态的混合，其方式类似于中微子味振荡。我们首先提出了一个简单的推导机制的方法的基础上未发表的笔记弗里曼戴森。接下来，我们扩展他的方法，包括边界条件和检索结果Boccaletti等人。从1970年。我们指出，虽然引力子和光子态之间的耦合非常弱，但中子星$\sim 10^{14}$ G周围的大磁场使Gertsenshtein效应成为引力子的一个可能来源。我们还指出，轴子-光子混合，一个活跃的当前研究的主题，本质上是相同的过程中的Gertsenshtein效应，因此一般机制可能是广泛的天体物理学和宇宙学的兴趣。
英文摘要：
As shown by Gertsenshtein in 1961, an external magnetic field can catalyze the mixing of graviton and photon states in a manner analogous to neutrino-flavor oscillations. We first present a straightforward derivation of the mechanism by a method based on unpublished notes of Freeman Dyson. We next extend his method to include boundary conditions and retrieve the results of Boccaletti et al. from 1970. We point out that, although the coupling between the graviton and photon states is extremely weak, the large magnetic fields around neutron stars $\sim 10^{14}$ G make the Gertsenshtein effect a plausible source of gravitons. We also point out that axion-photon mixing, a subject of active current research, is essentially the same process as the Gertsenshtein effect, and so the general mechanism may be of broad astrophysical and cosmological interest.
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