Extraction of the atom-dimer and dimer-dimer scattering lengths from the energy spectrum in the harmonic trap

Simon Tölle (Bonn)

In experiments one is often interested in scattering on bound states.  The calculation of scattering observables like phase shifts, scattering lengths, or effective ranges is hard in many-body systems.  The presence of a trap could be a tool to determine some of these observables.  In the seminar the framework and some results for three- and four-body systems are presented.  Additionally, some problems are discussed.

(Seminarraum II)