论文标题
将公制的重力耦合到类似Higgs的标量场
Coupling Metric-Affine Gravity to a Higgs-Like Scalar Field
论文作者
论文摘要
一般相对（GR）以不同的配方存在。它们在纯重力方面是等效的，但一旦包括物质，它们通常会带来不同的预测。在简要介绍了各种版本的GR之后，我们专注于度量型重力，这避免了关于消失曲率，扭转或非金属度的任何假设。我们使用它来构建标量场的作用，该动作是非最小程度地与重力耦合的。它涵盖了特殊情况下的许多先前研究的模型。消除了非传播自由度，我们得出了GR的度量公式中的等效理论。最后，我们简要介绍了对希格斯通货膨胀的影响。
General Relativity (GR) exists in different formulations. They are equivalent in pure gravity but generically lead to distinct predictions once matter is included. After a brief overview of various versions of GR, we focus on metric-affine gravity, which avoids any assumption about the vanishing of curvature, torsion or non-metricity. We use it to construct an action of a scalar field coupled non-minimally to gravity. It encompasses as special cases numerous previously studied models. Eliminating non-propagating degrees of freedom, we derive an equivalent theory in the metric formulation of GR. Finally, we give a brief outlook to implications for Higgs inflation.
