Abstract
A setup for preparing the Bose-Einstein condensate of rubidium atoms has been built. The condensate consists of 105–106 87Rb atoms in the hyperfine state F g = 2 of the ground electronic state. Three key indications of condensation—a sharp increase in the phase-space density of atoms, the threshold emergence of two fractions in the cloud, and anisotropic expansion of the condensate—have been observed.
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