Erlangen 2018 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 41: Ultracold Plasmas and Rydberg systems III (joint session A/Q)
Q 41.6: Talk
Wednesday, March 7, 2018, 15:15–15:30, K 0.011
Experimental realization of an Optical Feshbach resonance using ultra-long range Rydberg molecules — •Oliver Thomas1,2, Carsten Lippe1, Tanita Eichert1, and Herwig Ott1 — 1Department of Physics and research center OPTIMAS, University of Kaiserslautern, Germany — 2Graduate School Materials Science in Mainz, Gottlieb-Daimler-Strasse 47, 67663 Kaiserslautern, Germany
Over the last decades Feshbach resonances in ultra cold atomic gases have lead to some of the most important advances in atomic physics. Not only did they enable ground breaking work in the BEC-BCS crossover regime, but they are also a widely used tool for the association of ultra cold molecules. Leading to the observation of the first molecular Bose-Einstein Condensates and the emergence of ultra cold dipolar molecular systems. We show the experimental realization of optical Feshbach resonances using ultra-long range Rydberg molecules and demonstrate their practical use by tuning the revival time of a quantum many-body system quenched into a deep optical lattice. We believe this opens up a complete new field of Feshbach resonances as ultra-long range Rydberg molecules have a plenitude of available resonances for nearly all atomic species.