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Physics Colloquium: Bira van Kolck
September 20 | 4:00 pm - 5:00 pm
Title: The Discreet Charm of Scale Invariance in Nuclear and Atomic Physics
Abstract: Nature is certainly not invariant under changes of scale. Phenomena and laws are characterized by parameters that determine their dimensions. However, while the complexity of some many-body systems may stem from a profusion of distinct scales, rich structures exist even when there is no more than one essential scale associated with *discrete* scale invariance. I will discuss how intrinsically quantum-mechanical structures with unique properties, sometimes labeled “Efimov physics”, emerge in nuclear and some closely related atomic systems from a contact three-body force.
Host: Sebastian König