Ultracold lithium few-body puzzles

Seminar
QUEST Center event
No
Speaker
Lev Khaykovich (Bar-Ilan)
Date
26/12/2022 - 11:45 - 10:30Add to Calendar 2022-12-26 10:30:00 2022-12-26 11:45:00 Ultracold lithium few-body puzzles A ubiquitous property of ultracold gases is the tunability of two-body interactions. When these interactions are resonantly enhanced, the quantum mechanical scattering problem supports weakly bound three-body states with universal properties. The latter means independence of details of the short-range interaction potentials and a discrete scaling invariance. Various aspects of this universality have been successfully demonstrated theoretically and experimentally in several atomic species in a recent decade. Lithium, however, remains a notable exception stubbornly refusing to concur with the emergent framework. In this talk I shall overview the subject and describe an increasingly involved theory-experiment collaborative effort to reveal the physics responsible for this puzzling behavior.  Physics (#202), room 301 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Physics (#202), room 301
Abstract

A ubiquitous property of ultracold gases is the tunability of two-body interactions. When these interactions are resonantly enhanced, the quantum mechanical scattering problem supports weakly bound three-body states with universal properties. The latter means independence of details of the short-range interaction potentials and a discrete scaling invariance. Various aspects of this universality have been successfully demonstrated theoretically and experimentally in several atomic species in a recent decade. Lithium, however, remains a notable exception stubbornly refusing to concur with the emergent framework. In this talk I shall overview the subject and describe an increasingly involved theory-experiment collaborative effort to reveal the physics responsible for this puzzling behavior. 

Last Updated Date : 11/12/2022