How successful can the scalar-tensor theory be in understanding the accelerating universe?

Yasunori Fujii

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arXiv · 0908.4324

How successful can the scalar-tensor theory be in understanding the accelerating universe?

Yasunori Fujii

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Abstract

The accelerating universe is closely related to today's version of the cosmological constant problem; fine-tuning and coincidence problems. We show how successfully the scalar-tensor theory, a rather rigid theoretical idea, provides us with a simple and natural way to understand why today's observed cosmological constant is small only because we are old cosmologically, without fine-tuning theoretical parameters extremely.

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Yasunori Fujii. 2009-08-29. How successful can the scalar-tensor theory be in understanding the accelerating universe?. https://arxiv.org/abs/0908.4324

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