An Expository Survey on Different Approaches to Quantum Gravity

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Molaei, Mohammad Reza | 2022

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 56169 (42)
University: Sharif University of Technology
Department: Philosophy of Science
Advisor(s): Golshani, Mehdi; Azadegan, Ebrahim
Abstract:
The search for an empirically proven quantum theory of gravity is one of the greatest open problems of fundamental physics. Obstacles are formal and conceptual in nature. Our goal is to find a theory that somehow unites general relativity (Einstein's classical field gravity theory) and quantum field theory. In this research work, the problem of quantum gravity and the reason for its importance are investigated, as well as the proposed solutions; and what philosophical issues do these approaches and the issue itself create. Research has been carefully selected to remain managed in terms of size and content, however, some basic formalism is introduced to enter physics and the philosophy of physics. Here, we address the main conceptual problems, discuss their current state, and outline further directions for research. For this purpose, the current main approaches to quantum gravity are briefly reviewed and compared
Keywords:
Quantum Gravity ; Philosophical Challenges ; Different Approaches to Quantum Gravity ; Conceptual Challenges ; Quantum Field Theory

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