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Dynamical Cosmological Constant in R 3 Gravity

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Abstract

In this paper, we go through the famous f(R) theories of gravity, but keeping a peculiar one, namely R 3 modification. Moreover, instead of a coordinate free cosmological parameter, we take it to be a function of time. Having all these stuff, we investigate the notions of standard cosmology model, in the context of R 3 modification to general relativity, and in various regimes, we study the dynamical cosmological constant.

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Acknowledgments

This work was financially supported by Islamic Azad University, Central Tehran Branch.

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Authors and Affiliations

  1. Department of Physics, Islamic Azad University, Central Tehran Branch, Tehran, Iran

    Nasser Zare

  2. Department of Physics, Payame Noor University, PO BOX 19395-3697, Tehran, Iran

    Mohsen Fathi

Authors
  1. Nasser Zare
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  2. Mohsen Fathi
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Correspondence to Nasser Zare.

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Zare, N., Fathi, M. Dynamical Cosmological Constant in R 3 Gravity. Int J Theor Phys 54, 1059–1065 (2015). https://doi.org/10.1007/s10773-014-2298-z

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  • DOI: https://doi.org/10.1007/s10773-014-2298-z

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