Orateur
Dr
Pascal NAIDON
(RIKEN)
Description
Three particles resonantly interacting via short-range pairwise interactions experience the Efimov attraction which can bind them in an infinite series of three-body bound states. This phenomenon is well described in the zero-range theory, but this theory requires the introduction of a three-body parameter.
In this talk, I address the microscopic mechanism determining the three-body parameter from single-channel pairwise interaction potentials. I will show that it originates from a three-body deformation induced by pair correlation. This interpretation explains the universality of the three-body parameter observed for van der Waals potential, and suggest the existence of several university classes depending on the nature of the pairwise potential.
Author
Dr
Pascal NAIDON
(RIKEN)
Co-auteurs
Prof.
Masahito Ueda
(University of Tokyo)
Dr
Shimpei Endô
(Laboratoire Kastler-Brossel)
