Coupled eigenmodes in a two-component Bose-Einstein condensate
arXiv:cond-mat/9801237 · doi:10.1088/0953-4075/32/8/315
Abstract
We have studied the elementary excitations in a two-component Bose-Einstein condensate. We concentrate on the breathing modes and find the elementary excitations to possess avoided crossings and regions of coalescing oscillations where both components of the condensates oscillate with same frequency. For large repulsive interactions between the condensates, their oscillational modes tend to decouple due to decreased overlap. A thorough investigation of the eigenmodes near the avoided crossings is presented.
Replacement, 17 pages, 9 figures
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- Shell-shaped Bose-Einstein condensates realized with dual-species mixtures
- Dipole dynamics of an interacting bosonic mixture
- Painlevé test of coupled Gross-Pitaevskii equations