Milena Horvath
Bose-Einstein condensation of non-ground-state caesium atoms
Horvath, Milena; Dhar, Sudipta; Das, Arpita; Frye, Matthew D.; Guo, Yanliang; Hutson, Jeremy M.; Landini, Manuele; Nägerl, Hanns-Christoph
Authors
Sudipta Dhar
Arpita Das
Matthew Frye matthew.frye@durham.ac.uk
Academic Visitor
Yanliang Guo
Professor Jeremy Hutson j.m.hutson@durham.ac.uk
Professor
Manuele Landini
Hanns-Christoph Nägerl
Abstract
Bose-Einstein condensates of ultracold atoms serve as low-entropy sources for a multitude of quantum-science applications, ranging from quantum simulation and quantum many-body physics to proof-of-principle experiments in quantum metrology and quantum computing. For stability reasons, in the majority of cases the energetically lowest-lying atomic spin state is used. Here, we report the Bose-Einstein condensation of caesium atoms in the Zeeman-excited mf = 2 state, realizing a non-ground-state Bose-Einstein condensate with tunable interactions and tunable loss. We identify two regions of magnetic field in which the two-body relaxation rate is low enough that condensation is possible. We characterize the phase transition and quantify the loss processes, finding unusually high three-body losses in one of the two regions. Our results open up new possibilities for the mixing of quantum-degenerate gases, for polaron and impurity physics, and in particular for the study of impurity transport in strongly correlated one-dimensional quantum wires.
Citation
Horvath, M., Dhar, S., Das, A., Frye, M. D., Guo, Y., Hutson, J. M., …Nägerl, H. (2024). Bose-Einstein condensation of non-ground-state caesium atoms. Nature Communications, 15(1), Article 3739. https://doi.org/10.1038/s41467-024-47760-0
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 10, 2024 |
Online Publication Date | May 3, 2024 |
Publication Date | May 3, 2024 |
Deposit Date | Mar 29, 2024 |
Publicly Available Date | May 13, 2024 |
Journal | Nature Communications |
Publisher | Nature Research |
Peer Reviewed | Peer Reviewed |
Volume | 15 |
Issue | 1 |
Article Number | 3739 |
DOI | https://doi.org/10.1038/s41467-024-47760-0 |
Public URL | https://durham-repository.worktribe.com/output/2350085 |
Files
Published Journal Article
(1.3 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
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