Beyond Thomas--Fermi analysis of the density profiles of a miscible two-component Bose--Einstein condensate

Abstract

We investigate a harmonically trapped two-component Bose--Einstein condensate within the miscible regime, close to its boundaries, for different ratios of effective intra- and inter-species interactions. We derive analytically a universal equation for the density around the different boundaries in one, two and three dimensions, for both the coexisting and spatially separated regimes. We also present a general procedure to solve the Thomas--Fermi approximation in all three spatial dimensionalities, reducing the complexity of the Thomas--Fermi problem for the spatially separated case in one and three dimensions to a single numerical inversion. Finally, we analytically determine the frontier between the two different regimes of the system.

9 pages, 3 figures

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Cited by in corpus (5)

• Mass-imbalanced Bose-Einstein condensed mixtures in rotating perturbed trap
• Efficient numerical description of the dynamics of interacting multispecies quantum gases
• Evaluation of the particle numbers via the two root mean square radii in a 2-species Bose-Einstein condensate
• Phase diagram of two-component mean-field Bose mixtures
• Spin-textures of the Bose-Einstein condensates with three kinds of spin-1 atoms