Quantized hydrodynamic model and the dynamic structure factor for a trapped Bose gas

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 54, Issue 5, 1996, Pages 4204-4212

  Wu, Wen Chin ^a   Griffin, A ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001474408     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.54.4204     Document Type: Article

References (21)

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19. We should note that the words ``Thomas-Fermi approximation'' can have different meanings in the literature. In the present analysis of the T=0 condensate and its fluctuations, TF is used to refer to the neglect of the kinetic energy contribution associated with density fluctuations in (9) and (11). More generally, the TF approximation involves expressing both the interaction and kinetic energy of a nonuniform system as functionals of the local density using expressions for a uniform system. This ``local density approximation'' is often used in calculating the thermodynamic properties of a Bose gas in a harmonic well, under the assumption that the level spacing ℏ(Formula presented)≪(Formula presented)T [see, for example, V. Bagnato et al, Phys. Rev. A 35, 4354 (1987);
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