# Thin-shell wormholes in 2+1-dimensional Einstein-Scalar Theory

## TL;DR

This paper introduces a new class of stable thin-shell wormholes in 2+1 dimensions supported by scalar fields, demonstrating their stability against perturbations and potential barriers, extending the BTZ black hole solutions.

## Contribution

It presents novel scalar field extensions to BTZ black holes that enable the construction of stable thin-shell wormholes with unique stability properties.

## Key findings

- Wormholes supported by scalar charge are stable against linear perturbations.
- Existence of a strictly stable wormhole confined between potential barriers.
- Extension of BTZ black hole solutions with scalar fields.

## Abstract

We present an infinite class of one-parameter scalar field extensions to the BTZ black hole in 2+1-dimensions. By virtue of the scalar charge the thin-shell wormhole supported by a linear fluid at the throat becomes stable against linear perturbations. More interestingly, we provide an example of thin-shell wormhole which is strictly stable in the sense that it is confined in between two classically intransmissible potential barriers.