Insightful D-branes

TL;DR

This paper proposes a holographic model describing D-branes falling through the horizon of AdS black holes, linking scalar field dynamics in gauge theory to black hole interior physics and exploring implications for information loss.

Contribution

It introduces a novel dual description of D-branes crossing black hole horizons using field-dependent time reparameterization in the gauge theory.

Findings

Holographic description of black hole interior regions.

Field-dependent time reparameterization relates to gauge invariances.

Speculations on information loss and singularity resolution.

Abstract

We study a simple model of a black hole in AdS and obtain a holographic description of the region inside the horizon. A key role is played by the dynamics of the scalar fields in the dual gauge theory. This leads to a proposal for a dual description of D-branes falling through the horizon of any AdS black hole. The proposal uses a field-dependent time reparameterization in the field theory. We relate this reparametrization to various gauge invariances of the theory. Finally, we speculate on information loss and the black hole singularity in this context.