Three-component soliton states in spinor F=1 Bose-Einstein condensates with PT-symmetric generalized Scarf-Ⅱpotentials  

作　　者：Zhang-Lei Han Jun-Yi Lao Jia-Rui Zhang Yu-Jia Shen 

机构地区：[1]College of Science,China Agricultural University,Beijing 100083,China

出　　处：《Communications in Theoretical Physics》2025年第4期1-11,共11页理论物理通讯(英文版)

基　　金：supported by NSFC under Grant No.12272403;Beijing Training Program of Innovation under Grant No.S202410019024。

摘　　要：Introducing PT-symmetric generalized Scarf-Ⅱpotentials into the three-coupled nonlinear Gross-Pitaevskii equations offers a new way to seek stable soliton states in quasi-onedimensional spin-1 Bose-Einstein condensates.In scenarios where the spin-independent parameter c_(0)and the spin-dependent parameter c_(2)vary,we use both analytical and numerical methods to investigate the three-coupled nonlinear Gross-Pitaevskii equations with PT-symmetric generalized Scarf-Ⅱpotentials.We obtain analytical soliton states and find that simply modulating c_(2)may change the analytical soliton states from unstable to stable.Additionally,we obtain numerically stable double-hump soliton states propagating in the form of periodic oscillations,exhibiting distinct behavior in energy exchange.For further investigation,we discuss the interaction of numerical double-hump solitons with Gaussian solitons and observe the transfer of energy among the three components.These findings may contribute to a deeper understanding of solitons in Bose-Einstein condensates with PT-symmetric potentials and may hold significance for both theoretical understanding and experimental design in related physics experiments.

关 键 词：three-component soliton states PT-symmetric generalized Scarf-Ⅱpotentials Bose-Einstein condensates Three-coupled nonlinear Gross-Pitaevskii equations 

分 类 号：O469[理学—凝聚态物理]