Matches in SemOpenAlex for { <https://semopenalex.org/work/W1995842083> ?p ?o ?g. }
- W1995842083 abstract "We have investigated experimentally the finite-temperature properties of a Bose-Einstein condensed cloud of ${}^{87}mathrm{Rb}$ atoms in a harmonic trap. Focusing primarily on condensed fraction and expansion energy, we measure unambiguous deviations from ideal-gas thermodynamics and obtain good agreement with a Hartree-Fock description of the mixed cloud. Our results offer clear evidence of the mutual interaction between the condensed and thermal components. To probe the low-temperature region unaccessible to the usual time-of-flight technique, we use coherent Bragg scattering as a filtering technique for the condensate. This allows us to separate spatially the condensed and normal components in time of flight and to measure reliably temperatures as low as $0.2{T}_{c}^{0}$ and thermal fractions as low as 10%. Finally, we observe evidence for the limitations of the usual image analysis procedure, pointing out to the need for a more elaborate model of the expansion of the mixed cloud." @default.
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- W1995842083 date "2004-07-19" @default.
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- W1995842083 title "Experimental study of the thermodynamics of an interacting trapped Bose-Einstein condensed gas" @default.
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- W1995842083 doi "https://doi.org/10.1103/physreva.70.013607" @default.
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