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Observation of interspecies Feshbach resonances in an ultracold K-Cs mixture and refinement of interaction potentials
Michael Gröbner, Philipp Weinmann, Emil Kirilov +4
We observe interspecies Feshbach resonances due to s-wave bound states in ultracold K-Cs scattering for three different spin mixtures. The resonances are observed as…
Controlling the Rotational and Hyperfine State of Ultracold RbCs Molecules
Philip D. Gregory, Jesus Aldegunde, Jeremy M. Hutson +1
We demonstrate coherent control of both the rotational and hyperfine state of ultracold, chemically stable RbCs molecules with external microwave fields. We create a…
Deviations from Born-Oppenheimer mass scaling in spectroscopy and ultracold molecular physics
Jesse J. Lutz, Jeremy M. Hutson
We investigate Born-Oppenheimer breakdown (BOB) effects (beyond the usual mass scaling) for the electronic ground states of a series of homonuclear and heteronuclear alkali-metal d…
Creating Feshbach resonances for ultracold molecule formation with radiofrequency fields
Daniel J. Owens, Ting Xie, Jeremy M. Hutson
We show that radiofrequency (RF) radiation may be used to create Feshbach resonances in ultracold gases of alkali-metal atoms at desired magnetic fields that are convenient for ato…
Measurement of the binding energy of ultracold RbCs molecules using an offset-free optical frequency comb
Peter K. Molony, Avinash Kumar, Philip D. Gregory +6
We report the binding energy of RbCs molecules in their rovibrational ground state measured using an offset-free optical frequency comb based on difference frequency…