Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 2: Ultra-cold atoms, ions and BEC I (with Q)

A 2.3: Vortrag

Montag, 14. März 2011, 11:00–11:15, BAR 106

Three bosons in two dimensions — •Kerstin Helfrich and Hans-Werner Hammer — HISKP(Theorie) und BCTP, Universität Bonn

In this talk I discuss two-dimensional atomic gases exhibiting a large two-body scattering length. In an effective field theory framework we are able to calculate observables up to next-to-leading order, i.e. with the inclusion of the two-body effective range. We are especially interested in three-body observables such as the binding energies, the atom-dimer scattering length and the three-body recombination rate.