Some exact anisotropic cosmological solutions of a simple nonlocal de Sitter gravity

TL;DR

This paper finds new exact anisotropic Bianchi I cosmological solutions in a simple nonlocal de Sitter gravity model, extending previous isotropic solutions and providing insights into alternative explanations for dark energy and dark matter.

Contribution

It introduces several new exact anisotropic solutions in a nonlocal de Sitter gravity model, generalizing prior isotropic solutions to Bianchi I space.

Findings

New exact Bianchi I solutions identified

Solutions generalize previous FLRW cases

Results discussed in context of dark energy and dark matter

Abstract

It was shown recently that a very simple nonlocal de Sitter gravity model contains exact vacuum cosmological solution which mimics dark energy and dark matter in flat space. Some other interesting solutions have been also found. In this paper we proceed with finding several new exact cosmological solutions which belong to Bianchi I space. These solutions are simple generalizations of solutions previously found in the FLRW case of the same nonlocal de Sitter gravity model. Obtained results are discussed.