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arXiv · 1506.02496

Magnetically tunable Feshbach resonances in Li+Er

Maykel L. González-Martínez·Piotr S. Żuchowski
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Abstract

We explore the magnetic Feshbach spectra of ultracold ground-state Li+Er systems. Our calculations predict many tunable resonances at fields below 1000 G that could be stably tuned in ultracold experiments. We show that Li+Er spectra are much less congested than those of systems involving heavier highly-magnetic atoms and exhibit non-chaotic properties. These features would facilitate identifying and addressing individual resonances. We derive a simple model for the mass-scaling shifting of low-field resonances that may simplify designing experiments with different Er bosonic isotopes. Our work establishes Li+Er as very promising systems for quantum simulation, precision measurements and the formation of polar paramagnetic molecules.

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Maykel L. González-Martínez, Piotr S. Żuchowski. 2015-06-08. Magnetically tunable Feshbach resonances in Li+Er. https://doi.org/10.1103/physreva.92.022708

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