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arXiv 2004.12327hep-thgr-qc
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弯曲时空中两相互作用标量系统--弯曲时空有效场论(cEFT)对真空稳定性的研究

Two interacting scalars system in curved spacetime -- vacuum stability from the curved spacetime Effective Field Theory (cEFT) perspective

Zygmunt Lalak, Anna Nakonieczna, Łukasz Nakonieczny

摘要:

在这篇文章中,我们研究了引力诱导的高维算符对两个相互作用的标量场模型中真空稳定性问题的影响。作为一个框架,我们使用弯曲时空有效场论(cEFT)应用于上述系统,其中一个标量是重的。在积分出重标量之后,我们使用标准欧几里得方法来获得cEFT。除了分析标准算符如引力的非最小耦合和六维算符对标量场势的贡献外,我们还研究了很少讨论的六维算符对动力学项的贡献和新的引力诱导算符对标量四次自相互作用的贡献.

英文摘要:

In this article we investigated the influence of the gravity induced higher dimensional operators on the issue of vacuum stability in a model containing two interacting scalar fields. As a framework we used the curved spacetime Effective Field Theory (cEFT) applied to the aforementioned system in which one of the scalars is heavy. After integrating out the heavy scalar we used the standard Euclidean approach to the obtained cEFT. Apart from analyzing the influence of standard operators like the non-minimal coupling to gravity and the dimension six contribution to the scalar field potential, we also investigated the rarely discussed dimension six contribution to the kinetic term and the new gravity induced contribution to the scalar quartic self-interaction.

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