Markkanen Tommi
Department of Physics, King's College London, Strand, London WC2R 2LS, UK
Philos Trans A Math Phys Eng Sci. 2018 Mar 6;376(2114). doi: 10.1098/rsta.2017.0115.
In the case of a metastable electroweak vacuum, the quantum corrected effective potential plays a crucial role in the potential instability of the standard model. In the early universe, in particular during inflation and reheating, this instability can be triggered leading to catastrophic vacuum decay. We discuss how the large space-time curvature of the early universe can be incorporated in the calculation and in many cases significantly modify the flat space prediction. The two key new elements are the unavoidable generation of the non-minimal coupling between the Higgs field and the scalar curvature of gravity and a curvature induced contribution to the running of the constants. For the minimal set up of the standard model and a decoupled inflation sector we show how a metastable vacuum can lead to very tight bounds for the non-minimal coupling. We also discuss a novel and very much related dark matter generation mechanism.This article is part of the Theo Murphy meeting issue 'Higgs cosmology'.
在亚稳态电弱真空的情况下，量子修正的有效势在标准模型的势不稳定中起着关键作用。在早期宇宙中，特别是在暴胀和再加热期间，这种不稳定性可能被触发，导致灾难性的真空衰变。我们讨论了早期宇宙的大时空曲率如何纳入计算，并且在许多情况下会显著改变平坦空间的预测。两个关键的新要素是希格斯场与引力标量曲率之间不可避免地产生非最小耦合，以及曲率对常数跑动的诱导贡献。对于标准模型的最小设定和解耦的暴胀部分，我们展示了亚稳态真空如何导致对非最小耦合的非常严格的限制。我们还讨论了一种新颖且密切相关的暗物质产生机制。本文是西奥·墨菲会议特刊“希格斯宇宙学”的一部分。
