论文标题

关于黑暗能量和修饰的重力的掌握前景

A cosmographic outlook on dark energy and modified gravity

论文作者

Capozziello, Salvatore, D'Agostino, Rocco

论文摘要

COSMographic技术是一种强大的与模型无关的工具,可区分竞争宇宙学场景。鉴于治愈融合问题,危害了宇宙学距离的高红移扩张,讨论了标准宇宙学的关键优势和劣势。我们尤其着重于理性的概览近似值,以重建$ f(r)$,$ f(t)$和$ f(q)$重力框架下的暗能量行为。基于观察性的限制,我们研究了宇宙加速度的起源,以及超越标准宇宙学模型来解释暗能量问题的可能性。

The cosmographic technique is a powerful model-independent tool for distinguishing between competing cosmological scenarios. The key strengths and weaknesses of standard cosmography are discussed in view of healing the convergence problem endangering the high-redshift expansions of cosmological distances. We focus especially on rational cosmographic approximations to reconstruct the dark energy behaviour under the $f(R)$, $f(T)$ and $f(Q)$ gravity frameworks. Based on observational constraints over the cosmographic series, we investigate the origin of cosmic acceleration and the possibility of going beyond the standard cosmological model to explain the dark energy problem.

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