Speaker
Lucas Happ
(Universität Ulm)
Description
We study a three-body system confined to one space dimension, consisting of two identical, non-interacting, heavy particles and a light particle with arbitrary mass ratio interacting with the two heavy particles. In this talk we focus on a contact heavy-light interaction, and therefore apply the exact integral equations of Skorniakov and Ter-Martirosian, in order to obtain the three-body energy spectrum together with the corresponding wave functions. The accuracy of the Born-Oppenheimer approximation is then studied by comparing both spectrum and wave functions to the exact results. In addition, we present a proof showing that the results of the contact interaction are universal, if the underlying two-body system is tuned on resonance.
Authors
Lucas Happ
(Universität Ulm)
Dr
Maxim Efremov
(Universität Ulm, Institut für Quantenphysik)
