Consequences of the Pauli exclusion principle for the Bose-Einstein condensation of atoms and excitons

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dc.creatorRombouts, S. M. A.
dc.creatorPollet, L.
dc.creatorVan Houcke, K.
dc.date2005-01-27
dc.date2005-05-19
dc.date.accessioned2026-07-25T15:47:27Z
dc.descriptionThe bosonic atoms used in present day experiments on Bose-Einstein condensation are made up of fermionic electrons and nucleons. In this Letter we demonstrate how the Pauli exclusion principle for these constituents puts an upper limit on the Bose-Einstein-condensed fraction. Detailed numerical results are presented for hydrogen atoms in a cubic volume and for excitons in semiconductors and semiconductor bilayer systems. The resulting condensate depletion scales differently from what one expects for bosons with a repulsive hard-core interaction. At high densities, Pauli exclusion results in significantly more condensate depletion. These results also shed a new light on the low condensed fraction in liquid helium II.
dc.description4 pages, 2 figures, revised version, now includes a direct comparison with hard-sphere QMC results, submitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0501665
dc.identifierhttp://arxiv.org/abs/cond-mat/0501665
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/36965
dc.subjectStatistical Mechanics
dc.titleConsequences of the Pauli exclusion principle for the Bose-Einstein condensation of atoms and excitons
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