论文标题
斧头通货膨胀中施温格效应的数值研究
Numerical study of the Schwinger effect in axion inflation
论文作者
论文摘要
先前的研究表明，当与超负荷的Chern-simons密度耦合时，充气物可以产生螺旋超磁场的爆炸性产生。然后，在没有费米亚生产的情况下，这些领域具有在通货膨胀后预热宇宙并在Electroweak相变处触发了成功的baryogenogeny机制。然而，在Fermion生产的存在下，我们预计Fermion Backraction的量规场产量有很大的阻尼，这是一种称为Schwinger效应的现象，从而危害了它们的原始能力。使用数值方法，我们研究了生成的量规场的反应，并在存在施温格效应的情况下重新审视了量规预热和男性生成的过程。我们发现，预热量规的不太可能是在参数空间中仍然具有相当大的窗口，以实现Electroweak相变的宇宙的重子不对称。
Previous studies demonstrate that the inflaton, when coupled to the hypercharge Chern-Simons density, can source an explosive production of helical hypermagnetic fields. Then, in the absence of fermion production, those fields have the capability of preheating the Universe after inflation and triggering a successful baryogenesis mechanism at the electroweak phase transition. In the presence of fermion production however, we expect a strong damping of the gauge fields production from the fermion backreaction, a phenomenon called Schwinger effect, thus jeopardizing their original capabilities. Using numerical methods we study the backreaction on the generated gauge fields and revisit the processes of gauge preheating and baryogenesis in the presence of the Schwinger effect. We have found that gauge preheating is very unlikely, while still having a sizable window in the parameter space to achieve the baryon asymmetry of the Universe at the electroweak phase transition.
