@article{MaP, author = {Hoang Quyet}, title = { Nambu-goldstone Modes in Two Segregated Bose-einstein Condensates Limited by Two Hard Walls}, journal = {VNU Journal of Science: Mathematics - Physics}, volume = {39}, number = {3}, year = {2023}, keywords = {}, abstract = { The Nambu-Goldstone (NG) modes in the system of two segregated Bose-Einstein condensates (BECs) limited by two hard walls are studied by means of the Gross-Pitaevskii (GP) theory. Based on the double-parabola approximation (DPA) combining with the Bogoliubov-de Gennes (BdG) equations we found four NG modes that proves the failure of the Watanabe-Brauner counting rule and, furthermore, their dispersion relations depend explicitly on the geometrical structure.   }, issn = {2588-1124}, doi = {10.25073/2588-1124/vnumap.4832}, url = {https://js.vnu.edu.vn/MaP/article/view/4832} }