On the physical parametrization and magnetic analogs of the Emparan-Teo dihole solution

TL;DR

This paper reparametrizes the Emparan-Teo black dihole solution using physical quantities, explores magnetic analogs, and shows how external magnetic fields can eliminate supporting struts in non-extremal cases.

Contribution

It introduces a new parametrization of the dihole solution and extends the analysis of magnetic analogs and strut removal to non-extremal black diholes.

Findings

Reparametrization using Komar quantities and separation distance.

Calculation of potential $A_3$ for magnetic analogs.

External magnetic fields can remove supporting struts in non-extremal diholes.

Abstract

The Emparan-Teo non-extremal black dihole solution is reparametrized using Komar quantities and the separation distance as arbitrary parameters. We show how the potential $A_3$ can be calculated for the magnetic analogs of this solution in the Einstein-Maxwell and Einstein-Maxwell-dilaton theories. We also demonstrate that, similar to the extreme case, the external magnetic field can remove the supporting strut in the non-extremal black dihole too.