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Phase separation of ferromagnetic spin-1 Bose gases in non-zero magnetic field

  • G. SzirmaiEmail author
  • K. Kis-Szabó
  • P. Szépfalusy
Laser Cooling and Quantum Gas

Abstract.

Properties of ferromagnetic spin-1 Bose gases above and at the temperature of Bose-Einstein condensation are studied in the presence of a magnetic field. The equation of state is given in a mean-field approximation. It is found that there exists a critical magnetic field and below that two phases coexist with different particle densities. The stability of the system is also investigated with the help of the susceptibility matrix. The dynamics of the system is worked out in the Random Phase Approximation and the soft mode corresponding to the critical point is given.

Keywords

Spectroscopy Magnetic Field Neural Network State Physics Complex System 
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

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  1. 1.Research Group for Statistical Physics of the Hungarian Academy of SciencesBudapestHungary
  2. 2.Department of Physics of Complex SystemsRoland Eötvös UniversityBudapestHungary
  3. 3.Research Institute for Solid State Physics and Optics of the Hungarian Academy of SciencesBudapestHungary

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