标题： 由扭力引起的中微子振荡的早期宇宙发电机 显示英文标题

标题： Early Universe Dynamos from Neutrino Oscillations Induced by Torsion

摘要： 早先，de Sabbata 和 Gasperini 表明，中微子振荡使其具有质量，这可以由扭力引起。 最近，Enqvist 等人表明，可以利用大爆炸核合成中的磁场所产生的大质量中微子来作为星系磁场的种子。 因此，基于这些先前的研究，我们提出了几个例子，说明如何从大质量中微子密度以及从 Nitsch 得到的当前时刻的$T\approx{10^{-24}s^{-1}}$所获得的扭力中得到宇宙磁场种子，其磁种子场的量级为$B_{seed}\approx{10^{-12}G}$。 在我们使用由大质量中微子给出的扭力的情况下， $T_{\nu}\approx{10^{-26}s^{-1}}$在大爆炸核合成时期得到$t\approx{1s}$，其中原始核合成磁场由$B_{BBN}\approx{10^{11}G}$给出，得到一个遗迹磁场$B_{c}\approx{10^{39}G}$，这表明了 Enqvist 等人在早期宇宙中对宇宙磁场所得结果的正确性。 在再结合时期，可以从中微子中获得星系发电机的种子。 还表明，在弱磁场近似下，扭力可以减缓磁场的衰减，这证实了以前的结果。 在普朗克时代，当时间为$t\sim{10^{-43}s}$且$B_{Pl}\sim{10^{58}G}$时，使用具有最强扭曲的公式$10^{-19}G$，这会产生$B_{seed}\sim{10^{-4}G}$过强的场，不足以产生星系发电机的种子。 显示英文摘要

摘要： Earlier de Sabbata and Gasperini have shown that neutrinos oscillation which gives them a mass can be induced by torsion. More recently Enqvist et al have shown that it is possible to use massive neutrinos BBN magnetic fields to seed galactic magnetic fields. Thus based on these previous investigations we present several examples of how obtaining cosmological magnetic seed fields as galactic magnetic fields from massive neutrino densities and also from the torsion obtained by Nitsch as $T\approx{10^{-24}s^{-1}}$ at the present day which yields magnetic seed field of the order of $B_{seed}\approx{10^{-12}G}$. In the case we use torsion derived from massive neutrinos given by $T_{\nu}\approx{10^{-26}s^{-1}}$ one obtains in BBN time $t\approx{1s}$ with the primordial nucleosynthesis magnetic field given by $B_{BBN}\approx{10^{11}G}$ a relic magnetic field $B_{c}\approx{10^{39}G}$ which shows that the result obtained by Enqvist et al for the cosmological fields at the early universe. Galactic dynamo seed could be obtained from neutrinos at recombination. It is also shown that in the approximation of weak fields torsion can slow down the decay of magnetic fields which confirms previous results. At Planck era where the time is $t\sim{10^{-43}s}$ and $B_{Pl}\sim{10^{58}G}$ the use of formula with the strongest torsion $10^{-19}G$this yields $B_{seed}\sim{10^{-4}G}$ is a too strong field to warrant a galactic dynamo seed.