Mixed-isotope Bose-Einstein condensates in rubidium
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Data
2004-03-01
Autores
Shchesnovich, V. S.
Kamchatnov, A. M.
Kraenkel, Roberto André [UNESP]
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American Physical Soc
Resumo
We consider the ground-state properties of mixed Bose-Einstein condensates of Rb-87 and Rb-85 atoms in the isotropic pancake trap for both signs of the interspecies scattering length. In the case of the repulsive interspecies interaction, there are the axially symmetric and symmetry-breaking ground states. The threshold for the symmetry-breaking transition, which is related to appearance of a zero dipole mode, is found numerically. For attractive interspecies interactions, the two condensates assume symmetric ground states for the numbers of atoms up to the collapse instability of the mixture.
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Physical Review A. College Pk: American Physical Soc, v. 69, n. 3, 9 p., 2004.