Quantum Fractals

by Ubirajara van Kolck (ECT* Director > https://www.ectstar.eu/people/detail/ubirajara-van-kolck/)

Thursday Nov 6, 2025, 11:00 AM → 1:00 PM Europe/Paris

Amphi G.Besse (Subatech IMT Atlantique)

Nature is certainly not invariant under changes of scale. Phenomena and laws are characterized by parameters that determine their physical dimensions. However, while the complexity of some many-body systems may stem from a profusion of distinct scales, rich structures --such as some fractals-- 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.

QFractals.pdf