From Far UV to Deep IR - Lecture 2

Explore the theoretical framework connecting ultraviolet and infrared physics in this advanced particle physics lecture delivered at the International Centre for Theoretical Sciences. Delve into the sophisticated mathematical and conceptual tools used to understand how physics at vastly different energy scales are interconnected, from the far ultraviolet regime down to the deep infrared domain. Learn about effective field theory approaches that systematically describe physics across multiple scales using only the relevant degrees of freedom at each energy level. Examine the theoretical mechanisms and technical methods that allow physicists to bridge the gap between high-energy fundamental interactions and low-energy observable phenomena. Gain insights into how effective field theories serve as the appropriate language for understanding everything from TeV-scale physics to the behavior of mesons, baryons, atoms, and nuclei. Master the essential technical tools needed to think critically and constructively about multi-scale physics problems in modern theoretical particle physics.