Contemplating the Fate of Modified Gravity

Authors

Alexey Golovnev, Centre for Theoretical Physics, British University in Egypt, El Sherouk City, Cairo Governorate, 11837, Egypt
María-José Guzmán, Laboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, Tartu, 50411, Estonia

Document Type

Article

Publication Date

2-2024

Abstract

Possible models of modified gravity are being extensively studied now, with most phenomenological motivations coming from puzzles and tensions in cosmology due to a natural desire to better fit the known and newly coming data. At the same time, available experimental evidence is limited for testing gravity as a force beyond the regimes in which the theory of general relativity has proven to be successful. This situation leads researchers to look for “the simplest modification” to general relativity in a certain class of models, which is enough to solve one or more problems. As a result, we are lost amid a variety of theories with no deeper guiding principle. We give a general review of existing approaches and discuss the current state of the art.

Recommended Citation

Golovnev, Alexey and Guzmán, María-José, "Contemplating the Fate of Modified Gravity" (2024). Centre for Theoretical Physics and Computations. 317.
https://buescholar.bue.edu.eg/centre_theoretical_physics/317