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Title: Josephson Effect between two weakly-interacting Bose-Einstein Condensates
Author: Cladera Rosselló, Martí
Director/Tutor: Guilleumas, Montserrat
Keywords: Efecte Josephson
Interaccions febles (Física nuclear)
Treballs de fi de grau
Josephson effect
Weak interactions (Nuclear physics)
Bachelor's theses
Issue Date: Jul-2021
Abstract: In this work, we study the Josephson dynamics, a coherent tunneling of particles between two Bose-Einstein condensates, spatially confined in a double-well potential, at zero tem-perature. We have derived the dynamical equations of our system by using the Gross-Pitaevskii equation as theoretical framework, together with a two-mode approximation. We have investigated the tunneling dynamics within the Standard Two-Mode model, neglecting the overlap of nonlinear interaction terms, as well as within the Improved Two-Mode approximation, without neglecting them. We have obtained the interaction ranges where the Improved Two-Mode is necessary in order to accurately describe the dynamics of the system
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutora: Montserrat Guilleumas Morell
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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