In our recently proposed quantum theory of gravity, the universe is made of ‘atoms‘” of space-time-matter (STM). Planck scale foam is composed of STM atoms with Planck length as their associated Compton wave-length. The quantum dispersion and accompanying spontaneous localization of these STM atoms amounts to a cancellation of the enormous curvature on the Planck length scale. However, an effective dark energy term arises in Einstein equations, of the order required by current observations on cosmological scales. This happens if we propose an extremely light particle having a mass of about [Formula: see text], forty-two orders of magnitude lighter than the proton. The holographic principle suggests there are about [Formula: see text] such particles in the observed universe. Their net effect on space-time geometry is equivalent to dark energy, this being a low energy quantum gravitational phenomenon. In this sense, the observed dark energy constitutes evidence for quantum gravity. We then invoke Dirac’s large number hypothesis to also propose a dark matter candidate having a mass halfway (on the logarithmic scale) between the proton and the dark energy particle, i.e. about [Formula: see text].

中文翻译：

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暗能量作为一种大规模的量子引力现象

在我们最近提出的量子引力理论中，宇宙是由时空物质 (STM) 的“原子”构成的。普朗克尺度泡沫由 STM 原子​​组成，普朗克长度作为其相关的康普顿波长。这些 STM 原子​​的量子色散和伴随的自发定位相当于抵消了普朗克长度尺度上的巨大曲率。然而，一个有效的暗能量项出现在爱因斯坦方程中，这是当前宇宙尺度观测所需的顺序。如果我们提出一个极轻的粒子，其质量约为 [公式：见正文]，比质子轻 42 个数量级，就会发生这种情况。全息原理表明在观察到的宇宙中大约有[公式：见文本]这样的粒子。它们对时空几何的净影响相当于暗能量，这是一种低能量子引力现象。从这个意义上说，观测到的暗能量构成了量子引力的证据。然后我们援引狄拉克的大数假设来提出一个暗物质候选者，其质量介于质子和暗能量粒子之间（在对数尺度上），即大约[公式：见正文]。