Quantum creation of traversable wormholes ex nihilo in Gauss-Bonnet-dilaton gravity

TL;DR

This paper demonstrates the theoretical possibility of quantum-created traversable wormholes in Gauss-Bonnet-dilaton gravity, linking string theory to potential solutions for information loss in black holes.

Contribution

It presents a novel Euclidean wormhole solution in Gauss-Bonnet-dilaton gravity, showing how it can lead to the quantum creation of traversable wormholes.

Findings

Existence of Euclidean wormhole solutions in the model

Analytic continuation to Lorentzian signature yields traversable wormholes

Implications for information loss in black hole physics

Abstract

We investigate a nucleation of a Euclidean wormhole and its analytic continuation to Lorentzian signatures in Gauss-Bonnet-dilaton gravity, where this model can be embedded by the type-II superstring theory. We show that there exists a Euclidean wormhole solution in this model by choosing a suitable shape of the dilaton potential. After the analytic continuation, this explains a quantum creation of a time-like traversable wormhole. Finally, we discuss relations to the information loss problem and the current literature.