Abstract
We demonstrate a versatile, state-dependent trapping scheme for the ground and first excited rotational states of ^{23}Na^{40}K molecules. Close to the rotational manifold of a narrow electronic transition, we determine tune-out frequencies where the polarizability of one state vanishes while the other remains finite, and a magic frequency where both states experience equal polarizability. The proximity of these frequencies of only 10GHz allows for dynamic switching between different trap configurations in a single experiment, while still maintaining sufficiently low scattering rates.
Highlights
Trapping potentials for ultracold atoms and molecules are based on spatially dependent energy shifts of their internal states produced by magnetic, electric, or optical fields
We extend these concepts to rotational states of ultracold polar molecules [19,20,21,22,23,24,25,26,27,28]
Such molecules offer unique possibilities for quantum engineering due to their strong long-range dipolar interactions and long single-particle lifetime [29,30,31,32,33]. Manipulating their rotational degrees of freedom is important for experimental control of dipolar interactions
Summary
Trapping potentials for ultracold atoms and molecules are based on spatially dependent energy shifts of their internal states produced by magnetic, electric, or optical fields. In far-detuned optical dipole traps, rotational magic conditions only exist at special light polarizations or intensities [3,41,42,43,44].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
