Transition temperature of a weakly interacting Bose gas

Yee Mou Kao, T. F. Jiang

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report a theoretical study of the transition temperature of a trapped interacting dilute Bose gas. The system is treated like a two-fluid model consisting of a thermal component and a condensate component. Through the calculation of the energy spectra, the origins of various effects on the transition temperature are derived. We found that the interactive shift is affected by both the thermal component and the condensate component. The latter effect, which is about 34% of the former, has never been reported so far. With these two effects, our calculated interactive shift agrees very well with the recent measurement.

Original languageEnglish
Article number043604
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume73
Issue number4
DOIs
Publication statusPublished - 2006 Apr 14

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transition temperature
gases
condensates
two fluid models
shift
energy spectra

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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Transition temperature of a weakly interacting Bose gas. / Kao, Yee Mou; Jiang, T. F.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 73, No. 4, 043604, 14.04.2006.

Research output: Contribution to journalArticle

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N2 - We report a theoretical study of the transition temperature of a trapped interacting dilute Bose gas. The system is treated like a two-fluid model consisting of a thermal component and a condensate component. Through the calculation of the energy spectra, the origins of various effects on the transition temperature are derived. We found that the interactive shift is affected by both the thermal component and the condensate component. The latter effect, which is about 34% of the former, has never been reported so far. With these two effects, our calculated interactive shift agrees very well with the recent measurement.

AB - We report a theoretical study of the transition temperature of a trapped interacting dilute Bose gas. The system is treated like a two-fluid model consisting of a thermal component and a condensate component. Through the calculation of the energy spectra, the origins of various effects on the transition temperature are derived. We found that the interactive shift is affected by both the thermal component and the condensate component. The latter effect, which is about 34% of the former, has never been reported so far. With these two effects, our calculated interactive shift agrees very well with the recent measurement.

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