Charged dilatonic black rings and black saturns and their thermodynamics

TL;DR

This paper constructs charged black rings and black saturns in five-dimensional Einstein-Maxwell-dilaton theory, analyzing their physical properties, phase diagrams, and thermodynamic stability to understand the effects of charge and dilaton fields.

Contribution

It introduces new charged solutions in five dimensions by embedding neutral solutions in six dimensions and performing Kaluza-Klein reduction, comparing different dilatonic configurations.

Findings

Charge influences physical properties and phase structure.

Dilatonic solutions exhibit distinct thermodynamic behaviors.

Some solutions show thermodynamic stability under certain conditions.

Abstract

In this article charged black rings and black saturns are constructed in Einstein-Maxwell-dilaton theory in five dimensions. The neutral black ring and black saturn solutions are embedded in six dimensions and boosted with respect to the time coordinate and the added sixth dimension. Then the charged solutions are obtained by a Kaluza-Klein reduction. The influence of the charge is studied by analysing the physical properties and the phase diagram. The different dilatonic solutions are compared and their thermodynamic stability is considered.