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Quantum Field Theory: Fundamentals and Applications
This lecture by the instructor introduces Quantum Field Theory, focusing on the main theme of research activities in the space of quantum field theories. It covers the three paths to QFT: Particle Physics, Statistical Physics, and Condensed Matter Physics. The lecture delves into topics such as fields, special relativity, locality, free theory, anharmonic oscillators, and weak interactions through Feynman Diagrams. It also explores the Standard Model of particle Physics, continuous phase transitions, and the Renormalization Group Flow. Additionally, it discusses the challenges posed by strongly interacting QFTs like Quantum Chromo dynamics and the Ising model.