Low-dimensional Bose-Einstein condensation in finite-number trapped atoms | Zendy

Cui Hai-Tao | Zendy; LinCheng Wang | Zendy; Yi Xue-Xi | Zendy

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Low-dimensional Bose-Einstein condensation in finite-number trapped atoms

Author(s) -

Cui Hai-Tao,

LinCheng Wang,

Yi Xue-Xi

Publication year - 2004

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.53.991

Subject(s) - bose–einstein condensate , physics , fermi gamma ray space telescope , condensation , condensed matter physics , fermi level , trap (plumbing) , thomas–fermi model , quantum mechanics , thermodynamics , meteorology , electron

The effect of finite number of trapped atoms is discussed in Bose-Einstein condensation without interaction, according to Thomas-Fermi approximation. We obtain the state density by high-temperature expansion and calculate the critical temperature in one-dimensional(1D) and two-dimensional(2D) trap potentials. Then the temperature dependence of specific heat are analyzed. The results show that: in 2D case, the specific heat c is proportional to T2; in 1D case,c increases linearly with temperature.

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