Semi-infinite throats at finite temperature and static solutions in exactly solvable models of 2d dilaton gravity

TL;DR

This paper derives general static solutions in 2D dilaton gravity models at finite temperature, revealing the existence of regular configurations like black holes, semi-infinite throats, and stars, with a focus on the BPP model.

Contribution

It introduces a general form of static solutions at finite temperature and shows that semi-infinite throats are generic, not requiring fine tuning in these models.

Findings

Existence of regular solutions including black holes and throats at finite temperature.

Semi-infinite throats are generic features in these models.

Generalized BPP model demonstrates semi-infinite throats without fine tuning.

Abstract

Found is a general form of static solutions in exactly solvable models of 2d dilaton gravity at finite temperature. We reveal a possibility for the existence of everywhere regular solutions including black holes, semi-infinite throats and star-like configurations. In particular, we consider the Bose-Parker-Peleg (BPP) model which possesses a semi-infinite throat and analyze it at finite temperature. We also suggest generalization of the BPP model in which the appearance of semi-infinite throat has a generic character and does not need special fine tuning between parameters of the solution.