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Explore the theoretical framework of quasinormal modes as applied to nonequilibrium quantum field systems in this comprehensive lecture delivered by M. Heller from Ghent University. Delve into the mathematical foundations and physical interpretations of how quasinormal modes provide unique insights into the behavior of quantum fields when systems are driven away from thermal equilibrium. Learn about the connection between these modes and the relaxation dynamics of quantum many-body systems, examining how they characterize the approach to equilibrium and the emergence of hydrodynamic behavior. Discover the applications of this perspective in understanding dissipation, thermalization processes, and the spectral properties of strongly coupled quantum systems. Gain insights into how this theoretical approach bridges concepts from general relativity, where quasinormal modes were originally studied in the context of black hole physics, with condensed matter and quantum field theory applications in many-body systems.
