Double cosmic walls in Teleparallel Gravity

TL;DR

This paper presents the first example of a non-Riemannian double cosmic wall in teleparallel gravity, demonstrating how torsion influences gravitational forces, oscillation speed, and damping effects.

Contribution

It introduces a novel model of double cosmic walls in teleparallel gravity with torsion, highlighting their dynamic behavior and gravitational properties.

Findings

Walls experience repulsive gravity due to torsion

Oscillation speed depends on torsion and surface density

Stronger torsion causes damping of oscillations

Abstract

An example is given of a plane topological torsion defect representing a cosmic wall double wall in teleparallel gravity.The parallel planar walls undergone a repulsive gravitational force due to Cartan torsion.This is the first example of a non-Riemannian double cosmic wall.It is shown that the walls oscillate with a speed that depends on torsion and on the surface density of the wall.Cartan torsion acts also as a damping force reducing the speed of oscillation when it is stronger.