Noether symmetry in a nonlocal f(T) Gravity

TL;DR

This paper explores nonlocal f(T) gravity using Noether symmetry to find exact cosmological solutions, revealing a transition from deceleration to acceleration and some solutions resembling Lambda-CDM.

Contribution

It introduces a formal framework for nonlocal f(T) gravity with Noether symmetry, deriving equations and analyzing cosmological dynamics.

Findings

Transition from deceleration to acceleration in the model

Some solutions are comparable with Lambda-CDM

Statefinder parameters support the viability of solutions

Abstract

It is well known that the Noether symmetry approach proves to be very useful not only to fix physically viable cosmological models but also to reduce dynamics and achieve exact solutions. In this work, We examine a formal framework of nonlocal $f(T)$ theory of gravity through the Noether symmetry approach. The Noether equations of the nonlocal $f(T)$ theory are obtained for flat FLRW universe. We analyse the dynamics of the field in a nonlocal $f(T)$ gravity admitted by the Noether symmetry. We observe that there exists a transition from a deceleration phase to the acceleration one in our present analysis. We check statefinder parameters for the obtained solutions which imply that some particular solutions are comparable with the Lambda-CDM model.