The Effectiveness of D-branes in the Description of Near-Extremal Black Holes

TL;DR

This paper investigates open string loop corrections to D-brane processes and finds certain terms vanish, supporting the idea that these processes are not renormalized, which has implications for describing near-extremal black holes.

Contribution

It demonstrates that specific open string loop corrections vanish, indicating non-renormalization of certain D-brane processes related to black hole descriptions.

Findings

Open string loop corrections for certain D-brane processes vanish.

Supports non-renormalization of absorption/emission processes.

Implications for five-dimensional black holes and extremal 3-branes.

Abstract

It is known that weak coupling calculations of absorption or emission by slightly non-extremal D-brane configurations are in exact agreement with semiclassical results for the black holes they describe at strong couplings. We investigate one open string loop corrections to processes involving single and parallel D-branes and show that a class of relevant terms vanish, indicating that these processes are not renormalized. Our results have implications for five dimensional black holes and extremal 3-branes.