Exploring wormhole solutions with global monopole charge in the context of $f(Q)$ gravity

TL;DR

This paper investigates traversable wormholes with global monopole charge in $f(Q)$ gravity, analyzing their solutions, energy conditions, and stability, revealing conditions under which these wormholes are physically viable and stable.

Contribution

It introduces new wormhole solutions in $f(Q)$ gravity with global monopole charge, analyzing their properties, energy conditions, and stability, which has not been extensively studied before.

Findings

Wormhole solutions satisfy flaring-out conditions for certain EoS cases.

Energy conditions are violated at the throat due to monopole effects.

The solutions are found to be stable under TOV analysis.

Abstract

This study explores the potential existence of traversable wormholes influenced by a global monopole charge within the $f(Q)$ gravity framework. To elucidate the characteristics of these wormholes, we conducted a comprehensive analysis of wormhole solutions employing three different forms of redshift function under a linear $f(Q)$ model. Wormhole shape functions were derived for barotropic, anisotropic, and isotropic Equations of State (EoS) cases. However, in the isotropic EoS case, the calculated shape function failed to satisfy the asymptotic flatness condition. Additionally, we observed that our obtained shape functions adhered to the flaring-out conditions under an asymptotic background for the remaining EoS cases. Furthermore, we examined the energy conditions at the wormhole throat with a radius $r_0$. We noted the influences of the global monopole's parameter $\eta$, the EoS parameter $\omega$, and $n$ in violating energy conditions, particularly the null energy conditions. Finally, we conducted a stability analysis utilizing the Tolman-Oppenheimer-Volkov (TOV) equation and found that our obtained wormhole solution is stable.