Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
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宇宙模量和后膨胀宇宙：批判性评论
DOI：
10.1142/s0218271815300220
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
S. Watson
中科院分区：
文献类型：
--
作者：
G. Kane;K. Sinha;S. Watson
我们批判性地回顾了宇宙模量在确定宇宙暴胀后历史中的作用。模在标准模型物理之外的弦和 M 理论结构中无处不在，它们对紧致流形的几何形状进行参数化。对于那些质量由超对称性破坏决定的物质，这会导致它们最终在大爆炸核合成之前稍稍衰变（不会破坏其预测）。这会导致暴胀结束后不久出现物质主导阶段，这会影响重子和暗物质的生成，以及对宇宙微波背景的观测和大规模结构的生长。鉴于基础理论的进展以及暗物质和对撞机实验的指导，非热历史已经成为严格热历史的一种稳健且理论上有充分动机的替代方案。我们回顾了这种研究早期宇宙的方法，并讨论了理论挑战和观测意义。
We critically review the role of cosmological moduli in determining the post-inflationary history of the universe. Moduli are ubiquitous in string and M-theory constructions of beyond the Standard Model physics, where they parametrize the geometry of the compactification manifold. For those with masses determined by supersymmetry breaking this leads to their eventual decay slightly before Big Bang Nucleosynthesis (without spoiling its predictions). This results in a matter dominated phase shortly after inflation ends, which can influence baryon and dark matter genesis, as well as observations of the Cosmic Microwave Background and the growth of large-scale structure. Given progress within fundamental theory, and guidance from dark matter and collider experiments, non-thermal histories have emerged as a robust and theoretically well-motivated alternative to a strictly thermal one. We review this approach to the early universe and discuss both the theoretical challenges and the observational implications.
影响因子：
6.4
作者：
H. Peiris;R. Easther
通讯作者：
H. Peiris;R. Easther