Quadrupolar matter-wave soliton in two-dimensional free space

作     者：Jia-Sheng Huang Xun-Da Jiang Huai-Yu Chen Zhi-Wei Fan Wei Pang Yong-Yao Li 

作者机构：Department of Applied Physics College of Electronic Engineering South China Agricultural University Guangzhou 510642 China Department of Experiment Teaching Guangdong University of Technology Guangzhou 510006 China 

出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)

年 卷 期：2015年第10卷第4期

页      面：119-125页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 070104[理学-应用数学] 0701[理学-数学] 0702[理学-物理学] 

基　　金：国家自然科学基金 

主　　题：2D matter-wave solitons quadrupole-quadrupole interaction anisotropy soliton-soliton interaction dipole solitons 

摘      要：We study two-dimensional （2D） matter-wave solitons in the mean-field models formed by electric quadrupole particles with long-range quadrupoleluadrupole interaction （QQI） in 2D free space. The existence of 2D matter-wave solitons in the free space was predicted using the 2D Gross Pitaevskii Equation （GPE）. We find that the QQI solitoms have a higher mass （smaller size and higher intensity） and stronger anisotropy than the dipol^dipole interaction （DDI） solitons under the same environmental parameters. Anisotropic solitomsoliton interaction between two identical QQI solitons in 2D free space is studied. Moreover, stable anisotropic dipole solitons are observed, to our knowledge, for the first time in 2D free space under anisotropic nonlocal cubic nonlinearity.