On Thermodynamics of Charged Black Holes, Swampland, and Dark Matter

Abstract

Inspired by the idea that the cosmological constant can be considered as a dynamical quantity, we present a scenario bridging certain swampland conjectures from a new look at thermodynamics of black holes. Dealing with the radial metric function at the horizon as an equation of state, we discuss structural transitions and coexistence curves. By considering an effective potential with a quasi-static scalar field that could find a place in string theory, we then establish a connection between certain swampland conjectures. Relying on Kaluza Klein interpretations of scalar fields, we approach the dark dimension and dark matter through such a thermodynamic approach to charged black holes.