Key points are not available for this paper at this time.
In the framework of scalar-Einstein-Gauss-Bonnet gravity, we construct the Hayward black hole model and discuss the absence of ghosts in this model. Because a Hayward black hole has two horizons but no curvature singularity, it may solve the problem of the information loss that might be generated by black holes. The Gauss-Bonnet term appears as a stringy correction, and therefore, our results might indicate that the stringy correction would solve the information loss problem.
Nojiri et al. (2023) studied this question.