# Thin-shell wormholes constrained by cosmological observations

## TL;DR

This paper constrains thin-shell wormholes using cosmological data within the $$CDM model, finding that stable Schwarzschild and Reissner-Nordstrf6m wormholes do not exist under these constraints.

## Contribution

It introduces a novel approach to constrain and analyze the stability of thin-shell wormholes using cosmological observations within the $$CDM framework.

## Key findings

- Stable Schwarzschild and Reissner-Nordstrf6m wormholes are ruled out by observational constraints.
- The developed method can be applied to study stable wormholes in various black hole spacetimes.
- Cosmological data tightly constrains the dark energy EoS, impacting wormhole stability analysis.

## Abstract

We investigate the thin-shell wormholes constrained by cosmological observations for the first time in the literature. Without loss of generality, we study the thin-shell wormholes in $\omega$CDM model and analyze their stability under perturbations preserving the symmetry. Firstly, we constrain the $\omega$CDM model using a combination of Union 2.1 SNe Ia data, the latest $H(z)$ data and CMB data. Secondly, we use the constrained dark energy equation of state (EoS) $\omega$ which lies in $[-1.05,-0.89]$ to investigate thin-shell wormholes of various black hole spacetimes. We find that the stable Schwarzschild and Reinssner-Nordstr\"{o}m thin-shell wormholes constrained by cosmological observations do not exist. In addition, the method we developed can be applied into exploring the stable thin-shell wormholes from any black hole spacetime in the framework of any cosmological theory.