QFT in Curved Space-Time and it’s Applications in Cosmological Perturbation theory

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Ebrahimian, Ehsan | 2017

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 50328 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Abolhassani, Ali Akbar; Sheikh Jabbari, Mohammad Mahdi
Abstract:
We know the matter can curve the space-time according to the general theory of relativity. On the other hand Quantum Field Theory has been formulated in a flat space-time and we cannot use most of its techniques within a curved space-time. Formulating the Quantum Field Theory in curved space-time is important for various subjects in physics like early universe or black hole physics. We will review the formulating QFT in cosmological background and will look for observable consequences on Cosmological Microwave Background in this thesis
Keywords:
Inflation ; Cosmology ; Perturbation Theory ; Cosmological Perturbations ; Nongaussianity ; Quantum Fields Theory in Curved Space-time ; Non-Gaussian Perturbations

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