Traversable Wormholes Construction in 2+1 Dimensions

TL;DR

This paper explores the construction of traversable wormholes in 2+1 dimensions within low energy string theory, identifying different types based on dilaton backgrounds and controlling exotic matter through NS charge adjustments.

Contribution

It introduces new traversable wormhole solutions in 2+1 dimensions, classifies them by dilaton backgrounds, and demonstrates how to confine exotic matter near the throat.

Findings

Existence of BTZ and black string wormholes depending on dilaton backgrounds

Ability to confine exotic matter near the wormhole throat

Control of wormhole properties via NS charge adjustments

Abstract

We study traversable Lorentzian wormholes in the three-dimensional low energy string theory by adding some matter source involving a dilaton field. It will be shown that there are two-different types of wormhole solutions such as BTZ and black string wormholes depending on the dilaton backgrounds, respectively. We finally obtain the desirable solutions which confine exotic matter near the throat of wormhole by adjusting NS charge.