Heidelberg 2015 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 5: Posters 1: Novelties in Molecular Physics
MO 5.14: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Theoretical description of ultra-long-range Rydberg molecules — •Christian Fey1, Markus Kurz1, and Peter Schmelcher1,2 — 1Zentrum für optische Quantentechnologien, Universität Hamburg — 2Hamburg Centre for Ultrafast Imaging, Universität Hamburg
Ultra-long-range Rydberg molecules are “giant molecules” that consist of a Rydberg atom whose valence electron bounds one or even more ground state atoms by partial wave scattering at equilibrium distances of several 1000 Å. They differ from usual molecules not only by their exotic physical properties (e.g dipole moments ∼ 103 Debye) but also by their theoretical description. Here we review and link the different theoretical methods which are currently employed in the literature to determine the molecular Born-Oppenheimer potential curves. These methods rely either on zero-range Fermi-like pseudopotentials (e.g. bare or regularized delta potentials) or on the use of the Coulomb Green’s function inside quantum defect theory.