Quantitative test of thermal field theory for Bose-Einstein condensates.
Phys Rev Lett
; 91(25): 250403, 2003 Dec 19.
Article
em En
| MEDLINE
| ID: mdl-14754100
ABSTRACT
We present numerical results from a second-order quantum field theory of Bose-Einstein condensates applied to the 1997 JILA experiment [Phys. Rev. Lett. 78, 764 (1997)]]. Good agreement is found for the energies and decay rates for both the lowest-energy m=2 and m=0 modes. The anomalous behavior of the m=0 mode is due to experimental perturbation of the noncondensate. The theory is gapless and includes the coupled dynamics of the condensate and thermal cloud, the anomalous pair average, and all relevant finite size effects.
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01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Reino Unido