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http://hdl.handle.net/2445/188719
Title: | Two weakly interacting Bose-Einstein condensates: Two mode approximation |
Author: | Martorell Granollers, Alèxia |
Director/Tutor: | Guilleumas, Montserrat |
Keywords: | Condensació de Bose-Einstein Equació de Gross-Pitaevskii Treballs de fi de grau Bose-Einstein condensation Gross-Pitaevskii equation Bachelor's theses |
Issue Date: | Jun-2022 |
Abstract: | In this project, we study the dynamics of two weakly interacting Bose-Einstein condensates confined by a double-well potential. We obtain the two coupled equations of motion from the Gross-Pitaevskii equation, within the mean-field framework, by using a two-mode ansatz. We solve these equations numerically and study the tunneling dynamics of the system. We have obtained two different regimes: Josephson dynamics and macroscopic quantum self-trapping. Finally, we investigate the bifurcation between these two regimes and describe the dynamics of the system by using a simple pendulum analogy |
Note: | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022, Tutora: Montserrat Guilleumas Morell |
URI: | http://hdl.handle.net/2445/188719 |
Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
File | Description | Size | Format | |
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MARTORELL GRANOLLERS ALÈXIA_6057542_assignsubmission_file_TFG-Martorell-Granollers-Alèxia.pdf | 363.16 kB | Adobe PDF | View/Open |
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