Multicenter solutions in Eddington-inspired Born-Infeld gravity

TL;DR

This paper derives multicenter solutions in Eddington-inspired Born-Infeld gravity coupled with electromagnetic fields, revealing properties like bounces and regularity, and introduces a method applicable to other gravity theories.

Contribution

It presents a general method for constructing multicenter solutions in Eddington-inspired Born-Infeld gravity, including analysis of their properties and potential applicability to other theories.

Findings

Existence of multicenter solutions with equilibrium configurations.

Presence of bounces and geodesic completeness in solutions.

Method applicable to other gravity theories.

Abstract

We find multicenter (Majumdar-Papapetrou type) solutions of Eddington-inspired Born-Infeld gravity coupled to electromagnetic fields governed by a Born-Infeld-like Lagrangian. We construct the general solution for an arbitrary number of centers in equilibrium and then discuss the properties of their one-particle configurations, including the existence of bounces and the regularity (geodesic completeness) of these spacetimes. Our method can be used to construct multicenter solutions in other theories of gravity.