Stuttgart 2012 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: SYRA 2: Ultracold Rydberg Atoms and Molecules 2
A 20.3: Vortrag
Dienstag, 13. März 2012, 15:00–15:15, V47.01
Electric field impact on ultra-long-range triatomic polar Rydberg molecules — •Michael Mayle1, Seth T. Rittenhouse2, Peter Schmelcher3, and Hossein R. Sadeghpour2 — 1JILA, University of Colorado Boulder and NIST, USA — 2ITAMP, Harvard-Smithsonian Center for Astrophysics, USA — 3Zentrum für Optische Quantentechnologien, Universität Hamburg
We explore the impact of external electric fields on a recently predicted species of ultra-long-range molecules that emerge due to the interaction of a ground state polar molecule with a Rydberg atom. The external field mixes the Rydberg electronic states and therefore strongly alters the electric field seen by the polar diatomic molecule due to the Rydberg electron. As a consequence the adiabatic potential energy curves responsible for the binding can be tuned in such a way that an intersection with neighboring curves occurs. The latter leads to an admixture of s-wave character to the Rydberg wave function and should significantly facilitate the experimental preparation of this novel species.