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Astronomy and Cosmology
Cosmology
Cosmological constant problem, interesting solution?
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[QUOTE="Metmann, post: 5871761"] What do you think of Christof Wetterichs way? He uses a quantum effective action to describe the Universe (as a transition between fixed points of RG flow) where the Planck mass is described as a scalar field ("variable gravity"). This model (where masses decrease in time and the Universe shrinks) incorporates very naturally dark energy. See e.g. [URL]https://arxiv.org/pdf/1705.00552.pdf[/URL] (one in a series of many papers on this model). As far as I understand it, in his model inflation and DE are just two manifestations of the same. He also claims that his model is compatible with all current observations in cosmology, but I'm not really convinced yet. [/QUOTE]
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Astronomy and Cosmology
Cosmology
Cosmological constant problem, interesting solution?
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