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Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb ($^3$P) atoms [dataset] Open Access

We have investigated magnetically tunable Feshbach resonances in ultracold collisions of Rb with Yb in its metastable $^3$P$_2$ and $^3$P$_0$ states, using coupled-channel scattering and bound-state calculations. For the $^3$P$_2$ state, we find sharp resonances when both atoms are in their lowest Zeeman sublevels. However, these resonances are decayed by inelastic processes that produce Yb atoms in $^3$P$_1$ and $^3$P$_0$ states. The molecules that might be produced by magnetoassociation at the $^3$P$_2$ thresholds can decay by similar pathways and would have lifetimes no more than a few microseconds. For the $^3$P$_0$ state, by contrast, there are resonances that are promising for magnetoassociation. There are resonances due to both rotating and non-rotating molecular states that are significantly stronger than the analogous resonances for Yb($^1$S). The ones due to rotating states are denser in magnetic field; in contrast to Yb($^1$S), they exist even for bosonic isotopes of Yb($^3$P$_0$).

Descriptions

Resource type
Dataset
Contributors
Creator: Mukherjee, Bijit 1
Creator: Frye, Matthew D. 1
Creator: Hutson, Jeremy M. 1
1 Durham University, UK
Funder
Engineering and Physical Sciences Research Council (EPSRC) Grant EP/P01058X/1
Research methods
Other description
Keyword
Ultracold collisions
Cold and ultracold molecules
Atomic & molecular collisions
Scattering of atoms, molecules, clusters & ions
Scattering theory
Spin-orbit coupling
Subject
Location
Language
Cited in
Identifier
ark:/32150/r2f1881k92t
doi:10.15128/r2f1881k92t
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

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B. Mukherjee
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11 November 2021, 12:11:32
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Last modified: 2021:11:06 17:05:58+00:00
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Original checksum: 83618d8e8904785061df1685146fc4df
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User N. Syrotiuk has updated Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb ($^3$P) atoms [dataset] 21 days ago
User B. Mukherjee has updated Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb ($^3$P) atoms [dataset] 24 days ago