Early Universe Higgs dynamics in the presence of the Higgs-inflaton and non-minimal Higgs-gravity couplings
Early Universe Higgs dynamics in the presence of the Higgs-inflaton and non-minimal Higgs-gravity couplings
复制标题
存在希格斯暴胀和非最小希格斯重力耦合的早期宇宙希格斯动力学
DOI：
10.1088/1475-7516/2017/06/054
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发表时间：
2017
影响因子：
6.4
通讯作者：
Zatta Marco
中科院分区：
文献类型：
--
作者：
Ema Yohei;Karciauskas Mindaugas;Lebedev Oleg;Zatta Marco
电弱真空的表观亚稳态提出了许多宇宙学问题。这些涉及希格斯场向当前真空的演化，及其在暴胀期间和之后的稳定性。希格斯暴胀和非最小希格斯引力相互作用可以对这些潜在解决问题的考虑产生至关重要的影响。在这项工作中，我们允许这些耦合同时存在并研究它们的相互作用。我们发现希格斯暴胀和非最小希格斯重力耦合的不同组合在暴胀期间和之后会产生有效的希格斯质量。这对预热过程中希格斯稳定性的考虑至关重要。特别是，允许产生稳定解决方案的各种耦合。
Apparent metastability of the electroweak vacuum poses a number of cosmological questions. These concern evolution of the Higgs field to the current vacuum, and its stability during and after inflation. Higgs-inflaton and non-minimal Higgs-gravity interactions can make a crucial impact on these considerations potentially solving the problems. In this work, we allow for these couplings to be present simultaneously and study their interplay. We find that different combinations of the Higgs-inflaton and non-minimal Higgs-gravity couplings induce effective Higgs mass during and after inflation. This crucially affects the Higgs stability considerations during preheating. In particular, a wide range of the couplings leading to stable solutions becomes allowed.