Ground State Properties of Cold Bosonic Atoms At Large Scattering Lengths - Condensed Matter > Other Condensed MatterReport as inadecuate




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Abstract: In this letter, we study bosonic atoms at large scattering lengths using avariational method where the condensation amplitude is a variational parameter.We further examine momentum distribution functions, chemical potentials andspeed of sound, and spatial density profiles of cold bosonic atoms in a trap inthis limit. The later two properties turn out to bear similarities of those ofFermi gases. Estimates obtained here are applicable near Feshbach resonances,particularly when the fraction of atoms forming three-body structures is smalland can be tested in future cold atom experiments.



Author: Jun Liang Song, Fei Zhou UBC

Source: https://arxiv.org/







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