Global Monopole in Asymptotically dS/AdS Spacetime

TL;DR

This paper explores how the gravitational effects of a global monopole in asymptotically de Sitter or Anti-de Sitter spacetime depend on the cosmological constant, revealing conditions for positive monopole mass and attractive or repulsive gravity.

Contribution

It demonstrates that the monopole's mass can be positive in asymptotically dS spacetime when the cosmological constant exceeds a critical value, affecting its gravitational nature.

Findings

Monopole mass can be positive in asymptotically dS spacetime.

Gravitational field can be attractive or repulsive depending on the cosmological constant.

Critical cosmological constant value determines the sign of the monopole mass.

Abstract

In this paper, we investigate the global monopole in asymptotically dS/Ads spacetime and find that the mass of the monopole in the asymptotically dS spacetime could be positive if the cosmological constant is greater than a critical value. This shows that the gravitational field of the global monopole could be attractive or repulsive depending on the value of the cosmological constant.