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arXiv 2005.00001gr-qc
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时空量子能引起Gibbons-霍金辐射和暴胀吗?

Can Gibbons-Hawking Radiation and Inflation Arise Due to Spacetime Quanta?

Naouel Boulkaboul

摘要:

在这项研究中,我们提供了一个替代重新解释的吉本斯-霍金辐射以及通货膨胀。利用L.C. Céleri等人,在反德西特空间中,我们证明了Gibbons-霍金辐射是有关空间的一种固有性质,它是由于存在一个标量场而产生的,该标量场的量子"携带"一个长度$l$(即双曲面曲率的半径)。此外,在Tsallis q-框架下,我们提出了一个依赖于非广延参数$q$的暴胀模型。这种暴胀的主要来源是前面提到的同一个标量场。受观测数据的约束,q参数与模型的其他参数一起被用来估计暴胀结束的时间以及再加热温度。后者与Gibbons-Hawking温度有关。因此,本模型提供了一个关于宇宙背景辐射(CMB)的性质的另一种观点。

英文摘要:

In this study, we provide an alternatively reformulated interpretation of Gibbons-Hawking radiation as well as inflation. By using a spacetime quantization procedure, proposed recently by L.C. Céleri et al., in anti-de Sitter space we show that Gibbons-Hawking radiation is an intrinsic property of the concerned space, that arises due to the existence of a scalar field whose quanta "carry" a length $l$ (i.e. the radius of the hyperboloid curvature). Furthermore, within the context of Tsallis q-framework, we propose an inflationary model that depends on the non-extensive parameter $q$. The main source of such an inflation is the same scalar field mentioned before. Being constrained by the observational data, the q-parameter along with the rest of the model's parameters has been used to estimate the time at which inflation ends as well as the reheating temperature. The latter is found to be related to Gibbons-Hawking temperature. Thus, the present model offers an alternative perspective regarding the nature of the cosmic background radiation (CMB).

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