论文标题
可能违反破碎的韦伊尔不变性的洛伦兹对称性
Possible Lorentz symmetry violation from broken Weyl invariance
论文作者
论文摘要
在这项工作中，我们研究了线性Weyl重力耦合到标量场的线性理论，并研究了lorentz对称性因韦伊尔对称破裂后平坦空间限制中的非散布真空期望值而破坏的场景。我们表明，在对称破裂后产生了$ CPT $ -ODD LORENTZ侵入互动。讨论了不同对称性阶段的特征及其对生成的洛伦兹侵入背景的时空特征的依赖。此外，我们通过表明由于时空对称性增强而保护光质量尺度免受较大的辐射校正，从而分析了理论的自然性。
In this work, we investigate a theory of linear Weyl gravity coupled to a scalar field and study the scenario in which Lorentz symmetry is broken by a non-vanishing vacuum expectation value of the Weyl field in the flat space limit after Weyl symmetry breaking. We show that a $CPT$-odd Lorentz-violating interaction is generated after symmetry breaking. Features of different symmetry-broken phases and their dependence on the spacetime character of the generated Lorentz-violating background are discussed. Also, we analyze the naturalness of the theory by showing that the light mass scale is protected from large radiative corrections due to an enhanced spacetime symmetry.
