Black Holes in String Theory

TL;DR

This thesis investigates the quantum structure of black holes within string theory, focusing on supersymmetric solutions and microstates to advance understanding of quantum gravity and the information paradox.

Contribution

It provides a comprehensive analysis of black hole microstates from intersecting branes, supergravity solutions, and quantum mechanics perspectives in string theory.

Findings

Microstate models elucidate black hole entropy

Supersymmetric solutions reveal quantum structure

Insights into the information loss paradox

Abstract

Black holes are the hydrogen atoms of quantum gravity. For instance solving the information loss paradox will likely require a deep understanding of how the long-sought quantum gravity theory works. In this thesis we explore how black holes are modelled and how the quantum structure emerges in the context of string theory. We will mainly limit to four dimensional supersymmetric solutions, considering black holes microstates from three different viewpoints: intersecting string and branes in string theory, supergravity solutions and ground states of the supersymmetric quantum mechanics living on the worldvolume of the branes. (PhD Thesis, Lorenzo Pieri, 2016/2017)