约束莫尔引力中一个受近期数据发布支持的模型
Constraining a model supported in Moiré gravity with a recent data release
- Centro de Investigación y Estudios Avanzados del IPN(墨西哥国立理工学院高级研究与教育中心)
- Universidad Iberoamericana Ciudad de México(墨西哥城伊比利亚美洲大学)
- Universidad Autónoma de Querétaro(克雷塔罗自治大学)
- Universidad de Guadalajara(瓜达拉哈拉大学)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
本文提出莫尔引力中标量场与修正弗里德曼方程的解析解,利用多类观测数据约束参数,发现加速双峰及极度减速阶段,特征参数$\jmath=0.677$。
AI中文摘要:
莫尔理论是源自固态物理的一种革命性替代方案,可扩展至引力领域,形成名为莫尔引力的框架。其核心思想是爱因斯坦引力存在有效性极限,必须扩展至莫尔引力,在此框架中弗里德曼方程发生改变,并涌现出一个新的标量场。基于此,本文提出了与修正弗里德曼方程耦合的莫尔标量场的一个解析解,利用包含宇宙计时器、Ia型超新星、中等光度类星体及氢II星系的数据集,研究该标量场及整体宇宙学主要参数值的可行性并对其进行约束。我们的结果允许存在具有两个峰值的加速阶段,但同时也预测了一个极度减速的阶段,当理论特征参数为$\jmath=0.677^{+0.001}_{-0.002}$时,$q(z=0)=15.376^{+6.403}_{-4.692}$,这与在$z=0$处减速的其他模型形成对比。
英文摘要:
Moiré theory is a revolutionary alternative arising from solid-state physics that can be extended to gravity, forming a framework called Moiré gravity. The idea behind it is that Einsteinian gravity has a validity limit and must be extended to Moiré gravity, in which the Friedmann equation changes and a new scalar field emerges. In this vein, in this paper, we propose an analytic solution for the Moiré scalar field coupled with the modified Friedmann equation, studying the viability and constraining the value for the main parameter of the scalar field and cosmology in general, through the use of datasets that contain cosmic chronometers, type Ia supernovae, intermediate-luminosity quasars, and hydrogen II galaxies. Our results allow for an accelerated phase with two peaks, but also predict an extremely decelerated stage, with $q(z=0)=15.376^{+6.403}_{-4.692}$ when the characteristic parameter of the theory is $\jmath=0.677^{+0.001}_{-0.002}$, in contrast to other models that decelerate at $z=0$.