Coupled-mode theory for Bose–Einstein condensates with time dependent atomic scattering length
We study nonlinear tunnelling and localization phenomena in Bose–Einstein condensate in a double-well potential, using a coupled-mode theory. We consider the effects induced by the damping and an atomic scattering length oscillating in time in a double-well potential. The existence of synchronous so...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2005
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/14533/ http://irep.iium.edu.my/14533/ http://irep.iium.edu.my/14533/ http://irep.iium.edu.my/14533/1/coupled_mode_theory.pdf |
| Summary: | We study nonlinear tunnelling and localization phenomena in Bose–Einstein condensate in a double-well potential, using a coupled-mode theory. We consider the effects induced by the damping and an atomic scattering length oscillating in time in a double-well potential. The existence of synchronous solutions in a running phase mode and resonances in macroscopic quantum tunnelling for such system are investigated. The switching between macroscopic quantum tunnelling and quantum self-trapped regimes induced by periodic modulations of the scattering length is also studied. |
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