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Explore advanced theoretical physics concepts in this seminar lecture from Bobby Acharya of ICTP, focusing on the role of singularities in string/M-theory and their connections to quantum field theories across multiple dimensions. Delve into the mathematical framework of G2-holonomy spaces and the exceptional Lie group G2, examining how conical singularities provide insights into confining 4D gauge theories, including confining strings and domain walls. Learn about recent developments in the field that bridge 7D and 5D quantum field theories through complex interfaces, potentially yielding new understanding of 3D and 4D QFTs. Gain valuable perspective on the significance of singularities in various physics contexts, from cosmological initial conditions to black holes, renormalization, and scattering amplitudes.
