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Momentum distribution of confined bosons: temperature dependence

J. Tempere·F. Brosens·L. F. Lemmens·J. T. Devreese
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Abstract

The momentum distribution function of a parabolically confined gas of bosons with harmonic interparticle interactions is derived. In the Bose-Einstein condensation region, this momentum distribution substantially deviates from a Maxwell-Boltzmann distribution. It is argued that the determination of the temperature of the boson gas from the Bose-Einstein momentum distribution function is more appropriate than the currently used fitting to the high momentum tail of the Maxwell-Boltzmann distribution.

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J. Tempere, F. Brosens, L. F. Lemmens, J. T. Devreese. 1998-07-14. Momentum distribution of confined bosons: temperature dependence. https://doi.org/10.1103/physreva.58.3180

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