On String Swampland Conjectures from Black Holes Physics

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Barzegar Mirzaei, Shahrzad | 2022

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 55925 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Torabian, Mahdi
Abstract:
Swampland conjectures are set of conditions that must be satisfied in a quantum field theory in order to be compatible with a theory of quantum gravity. These conditions have been deduced from the features of field theories, which are derived from the compactification of the additional dimensions of the string theory. However, it is thought that the mpatibility of these conditions with the theory of quantum gravity is independent of string theory. One of the important reasons is that the swampland conjectures can be obtained by examining the physics of black holes. Black hole is one of the quantum states of any quantum gravity theory. In this thesis, first we will have an overview of the physics of black holes. Especially for charged black holes in the background of De sitter space. Then we study the weak gravity conjecture, Festina lente, and no global symmetries conjecture. In the end, we use properties of black holes as special states of Hilbert space of quantum gravity in order to achieve a better view of the swampland conjectures without referring to string theory.
Keywords:
Swampland Conjectures ; Black Holles ; Quantum Gravity ; High Energy Physics ; String Theory