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arXiv 1805.09810gr-qcastro-ph.COhep-phhep-th
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Brans-Dicke引力:从希格斯物理到(动力学)暗能量

Brans-Dicke gravity: from Higgs physics to (dynamical) dark energy

Joan Sola

摘要:

希格斯机制是电弱相互作用标准模型的核心部分之一,多亏了它,我们才能产生基本粒子的质量。但其基本起源仍不清楚。此外,为了保持可重整化性,我们必须自发地破坏规范对称性,这导致了一个与观测不相容的巨大的诱导宇宙学常数。事实证明,在广义的Brans-Dicke引力理论的背景下,希格斯势能结构可以从携带无害的宇宙真空能量的场方程的解中激发出来。此外,晚期的宇宙演化实际上看起来像是一个充满了温和演化的动态暗能量的宇宙,模仿了精髓或幽灵暗能量。

英文摘要:

The Higgs mechanism is one of the central pieces of the Standard Model of electroweak interactions and thanks to it we can generate the masses of the elementary particles. Its fundamental origin is nonetheless unknown. Furthermore, in order to preserve renormalizability we have to break the gauge symmetry spontaneously, what leads to a huge induced cosmological constant incompatible with observations. It turns out that in the context of generalized Brans-Dicke theories of gravity the Higgs potential structure can be motivated from solutions of the field equations which carry harmless cosmological vacuum energy. In addition, the late time cosmic evolution effectively appears like an universe filled with mildly evolving dynamical dark energy mimicking quintessence or phantom dark energy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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