English

On Nonlocal Modified Gravity and its Cosmological Solutions

High Energy Physics - Theory 2017-01-10 v1 Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Abstract

During hundred years of General Relativity (GR), many significant gravitational phenomena have been predicted and discovered. General Relativity is still the best theory of gravity. Nevertheless, some (quantum) theoretical and (astrophysical and cosmological) phenomenological difficulties of modern gravity have been motivation to search more general theory of gravity than GR. As a result, many modifications of GR have been considered. One of promising recent investigations is Nonlocal Modified Gravity. In this article we present a brief review of some nonlocal gravity models with their cosmological solutions, in which nonlocality is expressed by an analytic function of the d'Alembert-Beltrami operator \Box. Some new results are also presented.

Keywords

Cite

@article{arxiv.1701.02090,
  title  = {On Nonlocal Modified Gravity and its Cosmological Solutions},
  author = {Ivan Dimitrijevic and Branko Dragovich and Jelena Stankovic and Alexey S. Koshelev and Zoran Rakic},
  journal= {arXiv preprint arXiv:1701.02090},
  year   = {2017}
}

Comments

16 pages

R2 v1 2026-06-22T17:44:28.922Z