Two-fluid hydrodynamics for a trapped weakly interacting Bose gas

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 57, Issue 6, 1998, Pages 4695-4698

  Zaremba, E ^a   Griffin, A ^b   Nikuni, T ^b  

^a QUEEN S UNIVERSITY   (Canada)

^b UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000293616     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.57.4695     Document Type: Article

References (17)

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9. M.-O. Mewes et al, Phys. Rev. Lett. 77, 988 (1996); PRLTAOW. Ketterle (private communication).
10. S. Giorgini, L. Pitaevskii, and S. Stringari, J. Low Temp. Phys. 109, 309 (1997); JLTPAC.These authors showed that the particlelike excitation energy we use is valid to quite low temperatures in a trapped gas.
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12. T. R. Kirkpatrick and J. R. Dorfman, J. Low Temp. Phys. 58, 301 (1985); JLTPAC
13. J. Low Temp. Phys.T. R. KirkpatrickJ. R. Dorfman58, 399 (1985). While quite different in detail, our work may be viewed as a generalization of these papers to the case of a trapped Bose gas.
14. Equation (58) in the first paper of Ref. 11 is a kinetic equation for excitations in the local rest frame of the condensate. We have verified that this equation leads to the same set of hydrodynamic equations as in Eq. (6) if collisions involving condensate atoms are ignored.
15. A. Griffin and E. Zaremba, Phys. Rev. A 56, 4839 (1997).PLRAAN
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17. E. Zaremba and A. Griffin (unpublished).