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  Magnetic Field Control of Elastic Scattering in a Cold Gas of Fermionic Lithium Atoms

Jochim, S., Bartenstein, M., Hendl, G., Hecker Denschlag, J., Grimm, R., Mosk, A., et al. (2002). Magnetic Field Control of Elastic Scattering in a Cold Gas of Fermionic Lithium Atoms. Physical Review Letters, 89: 273202, pp. 1-4.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-84ED-C Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-84EE-A
Genre: Journal Article

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 Creators:
Jochim, S.1, Author           
Bartenstein, M.2, Author
Hendl, G.2, Author
Hecker Denschlag, J.2, Author
Grimm, R.3, Author           
Mosk, A.4, Author           
Weidemüller, M.3, Author           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              
2Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria FOM instituut voor plasmafysica Rijnhuizen, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands, ou_persistent22              
3Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907546              
4Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907548              

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 Abstract: We study elastic collisions in an optically trapped spin mixture of fermionic lithium atoms in the presence of magnetic fields up to 1.5 kG by measuring evaporative loss. Our experiments confirm the expected magnetic tunability of the scattering length by showing the main features of elastic scattering according to recent calculations. We measure the zero crossing of the scattering length at 530(3) G which is associated with a predicted Feshbach resonance at ~850 G. Beyond the resonance we observe the expected large cross section in the triplet scattering regime.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 62337
 Degree: -

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Title: Physical Review Letters
  Alternative Title : Phys. Rev. Lett.
Source Genre: Journal
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Pages: - Volume / Issue: 89 Sequence Number: 273202 Start / End Page: 1 - 4 Identifier: -