Guebli, Nadia2016-12-072016-12-072016-05-31Mémoire En vue de l’obtention du diplôme de Master en physiquehttp://dspace.univ-chlef.dz:8080/jspui/handle/123456789/1038Mémoire En vue de l’obtention du diplôme de Master en physique Option : Gaz QuantiquesTwo-component Bose-Einstein condensate show many interesting phenomena due to the interplay between the inter and intra component interactions. We study the dynamical properties of a highly unbalanced mixture in both trapped and homogeneous cases using two couple Gross-Pitaevskii equation. Effects of inter and intra-component interactions on the collective mode frequencies are discussed in three and one dimensions.enDynamic of unbalanced mixtureBose mixtureSuperfluidityThesis