Large $D$ Black Holes in an environment

TL;DR

This paper constructs large D black hole solutions in the presence of matter, using a membrane paradigm approach, and derives their metrics and membrane equations up to second and first sub-leading orders in 1/D.

Contribution

It provides a systematic construction of dynamical black holes with matter in the large D limit, extending previous vacuum solutions and deriving membrane equations at sub-leading orders.

Findings

Black hole solutions constructed up to second sub-leading order in 1/D.

Membrane equations derived up to first sub-leading order in 1/D.

Framework applicable to matter sources with weak stress tensors.

Abstract

We construct dynamical black hole solutions to Einstein Equations in presence of matter in the large $D$ limit. The matter stress tensors that we consider are weak in the sense that they source asymptotic spacetimes with internal curvatures of the order of $\mathcal{O}(D^0)$. Apart from this, we work with a generic stress tensor demanding only that the stress tensor satisfies the conservation equations. The black hole solutions are obtained in terms of the dual non-gravitational picture of membranes propagating in spacetimes equivalent to the asymptotes of the black holes. We obtain the metric solutions to the second sub-leading order in $1/D$. We also obtain the equations governing the dual membranes up to the first sub-leading order in $1/D$.