Data for Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap

Guttridge, Alex (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, UK); Hopkins, Stephen (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, UK); Hutson, Jeremy (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry, Durham University, UK); Frye, Matthew (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry, Durham University, UK); Cornish, Simon (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, UK); Kemp, Stefan (Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, UK)

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Data for Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap Open Access

We present measurements of interspecies thermalization between ultracold samples of $^{133}$Cs and either $^{174}$Yb and $^{170}$Yb. The two species are trapped in a far-off-resonance optical dipole trap and $^{133}$Cs is sympathetically cooled by Yb. We extract effective interspecies thermalization cross sections by fitting the thermalization measurements to a rate equation model, giving \mbox{$\sigma_{\mathrm{Cs-^{174}Yb}} = \left(5 \pm 2\right) \times 10^{-13} \, \mathrm{cm^{2}}$} and \mbox{$\sigma_{\mathrm{Cs-^{170}Yb}} = \left(18 \pm 8\right) \times 10^{-13} \, \mathrm{cm^{2}}$}. We perform quantum scattering calculations of the thermalization cross sections and optimize the CsYb interaction potential to reproduce the measurements. We predict scattering lengths for all isotopic combinations of Cs and Yb. We also demonstrate the independent production of $^{174}$Yb and $^{133}$Cs Bose-Einstein condensates using the same optical dipole trap, an important step towards the realization of a quantum-degenerate mixture of the two species.

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Resource type: Dataset
Contributors: Creator: Guttridge, Alex ¹
Contact person: Guttridge, Alex ¹
Creator: Hopkins, Stephen ¹
Creator: Kemp, Stefan ¹
Creator: Frye, Matthew ²
Creator: Hutson, Jeremy ²
Creator: Cornish, Simon ¹

¹ Joint Quantum Centre (JQC) Durham-Newcastle, Department of Physics, Durham University, UK
² Joint Quantum Centre (JQC) Durham-Newcastle, Department of Chemistry, Durham University, UK
Funder: Engineering and Physical Sciences Research Council
Research methods
Other description: Data files used in "Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap". For more information refer to the README.txt file included in data zip file.
Keyword: Atomic Physics
Ultracold Atoms
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Location
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Cited in: arxiv:1704.03270
Identifier: ark:/32150/r2rv042t06m
doi:10.15128/r2rv042t06m
Publisher: Durham University
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Depositor: A. Guttridge
Date Uploaded: 4 April 2017, 09:04:27
Date Modified: 26 May 2017, 18:05:47
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Characterization: File format: zip (ZIP Format)

Mime type: application/zip

File size: 548881

Last modified: 2017:05:26 18:33:54+01:00

Filename: CsYb Thermalisation.zip

Original checksum: 50c61b3aa97c95876d319f1b5ab8e83b

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User A. Guttridge has added a new version of Data for Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap	almost 7 years ago
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User A. Guttridge has updated Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap	about 7 years ago
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