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Explore the fundamentals of fermionic strings in this 90-minute lecture from the String Theory 2 course (PHY453.5) delivered by Ashoke Sen at the International Centre for Theoretical Sciences. The lecture covers essential concepts in supersymmetric string theories, including Free Heterotic String, Type II and Type I Superstring theories, interactions, picture changing operators, and amplitude computations. This advanced theoretical physics lecture requires prior knowledge of Quantum Field Theory, General Relativity, and String Theory 1. Part of a semester-long course that meets Tuesdays and Thursdays, this session helps students develop the skills needed to compute the spectrum and interactions in supersymmetric string theories.
