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Coupled-mode theory for Bose–Einstein condensates with time dependent atomic scattering length

Abdullaev, Fatkhulla Kh. and Shamsul Shaari, Jesni and Wahiddin, Mohamed Ridza (2005) Coupled-mode theory for Bose–Einstein condensates with time dependent atomic scattering length. Physics Letters A, 345 (1-3). pp. 237-244. ISSN 0375-9601

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Abstract

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.

Item Type: Article (Journal)
Additional Information: 3844/14533
Uncontrolled Keywords: Bose–Einstein condensate; Double-well trap; Nonlinear tunnelling; Quantum self-trapping; Oscillating scattering length
Subjects: Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science > Department of Biomedical Science
Depositing User: Ms Rosyidah Taju Rahim
Date Deposited: 04 Jan 2012 13:34
Last Modified: 04 Jan 2012 13:34
URI: http://irep.iium.edu.my/id/eprint/14533

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