Black Holes in String Theory

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)