Stability of Non-asymptotically flat thin-shell wormholes in generalized dilaton-axion gravity

TL;DR

This paper constructs a new thin-shell wormhole model in generalized dilaton-axion gravity, demonstrating its stability and showing how to minimize exotic matter through parameter adjustments.

Contribution

It introduces a novel thin-shell wormhole in non-asymptotically flat black holes within dilaton-axion gravity, highlighting stability and matter reduction techniques.

Findings

The wormhole is stable under certain conditions.

Exotic matter can be minimized by parameter tuning.

The model applies to non-asymptotically flat black holes.

Abstract

We construct a new type of thin-shell wormhole for non-asymptotically flat charged black holes in generalized dilaton-axion gravity inspired by low-energy string theory using cut-and-paste technique. We have shown that this thin shell wormhole is stable. The most striking feature of our model is that the total amount of exotic matter needed to support the wormhole can be reduced as desired with the suitable choice of the value of a parameter. Various other aspects of thin-shell wormhole are also analyzed.