Gauge theory origins of supergravity causal structure

TL;DR

This paper explores how gauge theory mechanisms determine the causal structure of dual supergravity, revealing that features like light cones and horizons emerge dynamically through new light degrees of freedom, offering insights into black hole horizons from a D-brane perspective.

Contribution

It demonstrates the gauge theory origins of supergravity causal structures and explicitly identifies the light degrees of freedom responsible for horizon emergence.

Findings

Light cone structure and horizons emerge dynamically in gauge theory.

New light degrees of freedom are associated with horizon formation.

Provides a gauge theory perspective on black hole horizons.

Abstract

We discuss the gauge theory mechanisms which are responsible for the causal structure of the dual supergravity. For D-brane probes we show that the light cone structure and Killing horizons of supergravity emerge dynamically. They are associated with the appearance of new light degrees of freedom in the gauge theory, which we explicitly identify. This provides a picture of physics at the horizon of a black hole as seen by a D-brane probe.