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Applied Physics B

, Volume 79, Issue 8, pp 1001–1007 | Cite as

Dynamics and thermodynamics in spinor quantum gases

  • H. Schmaljohann
  • M. Erhard
  • J. Kronjäger
  • K. Sengstock
  • K. Bongs
Article

Abstract

We discuss magnetism in spinor quantum gases theoretically and experimentally with emphasis on temporal dynamics of the spinor order parameter in the presence of an external magnetic field. In a simple coupled Gross–Pitaevskii picture we observe a dramatic suppression of spin dynamics due to quadratic Zeeman “dephasing”. In view of an inhomogeneous density profile of the trapped condensate we present evidence of spatial variations of spin dynamics. In addition we study spinor quantum gases as a model system for thermodynamics of Bose–Einstein condensation. As a particular example we present measurements on condensate magnetisation due to the interaction with a thermal bath.

Keywords

Spin State Normal Component Total Spin 87Rb Einstein Condensation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • H. Schmaljohann
    • 1
  • M. Erhard
    • 1
  • J. Kronjäger
    • 1
  • K. Sengstock
    • 1
  • K. Bongs
    • 1
  1. 1.Institut für Laser-PhysikUniversität HamburgHamburgGermany

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