# Structure formation in modified gravity models

@article{Koyama2006StructureFI, title={Structure formation in modified gravity models}, author={Kazuya Koyama}, journal={Journal of Cosmology and Astroparticle Physics}, year={2006}, volume={2006}, pages={017 - 017} }

We study structure formation in phenomenological models in which the Friedmann equation receives a correction of the form Hα/rc2 − α, to realize an accelerated expansion without dark energy. In order to address structure formation in these models, we construct simple covariant gravitational equations which give the modified Friedmann equation with α = 2/n, where n is an integer. For n = 2, the underlying theory is known as a five-dimensional (5D) braneworld model (the DGP model). Thus the…

## 44 Citations

Non-linear Evolution of Matter Power Spectrum in Modified Theory of Gravity

- Physics
- 2009

We present a formalism to calculate the nonlinear matter power spectrum in modified gravity models that explain the late-time acceleration of the Universe without dark energy. Any successful modified…

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- 2016

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Abstract
We present the scalar-tensor gravitational theory with an exponential potential in which Pauli metric is regarded as the physical space-time metric. We show that it is essentially equivalent…

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The idea that we live in a Universe undergoing a period of acceleration is a new, yet strongly held, notion in cosmology. As this can, potentially, be explained with a modification to general…

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