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Finite temperature excitations of an inhomogneous trapped Bose gas with Feshbach resonances

X. X. Yi·D. L. Zhou·C. P. Sun·W. M. Zheng
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Abstract

We derive and discuss the temperature dependance of the condensate and noncondensate density profile of a Bose-Einstein condensate gas with Feshbach resonance in a parabolic trap. These quantities are calculated self-consistently using the generalized Hartree-Fock-Bogoliubov (HFB) equations within the Bogoliubov approximation. At zero temperature, the HFB equation can be solved by means of a variation method that give the low excitation spectrum. Moreover, within the two-body collision theory, we estimate the relationship between the atom number and the external magnetic field $B$, it is in good agreement with the data in recent experiments.

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X. X. Yi, D. L. Zhou, C. P. Sun, W. M. Zheng. 2000-03-05. Finite temperature excitations of an inhomogneous trapped Bose gas with Feshbach resonances. https://doi.org/10.1088/0953-4075%2F33%2F6%2F306

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