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arXiv 1104.0610cond-mat.quant-gasnlin.PS
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具有排斥原子相互作用的偶极玻色-爱因斯坦凝聚体准一维亮孤子和涡旋孤子的动力学

Dynamics of quasi-one-dimensional bright and vortex solitons of a dipolar Bose-Einstein condensate with repulsive atomic interaction

Luis E. Young-S., P. Muruganandam, S. K. Adhikari

摘要:

通过对三维Gross-Pitaevskii方程的数值和变分分析,研究了雪茄状偶极玻色-爱因斯坦凝聚体中大排斥原子相互作用下亮孤子和涡亮孤子的形成和动力学.给出了孤子稳定区域的相图。我们还研究了孤子的呼吸振荡动力学以及两个孤子在大速度下的碰撞动力学。两个静止时并排放置的孤子在偶极引力作用下聚结形成一个稳定的束缚孤子分子。

英文摘要:

By numerical and variational analysis of the three-dimensional Gross-Pitaevskii equation we study the formation and dynamics of bright and vortex-bright solitons in a cigar-shaped dipolar Bose-Einstein condensate for large repulsive atomic interactions. Phase diagram showing the region of stability of the solitons is obtained. We also study the dynamics of breathing oscillation of the solitons as well as the collision dynamics of two solitons at large velocities. Two solitons placed side-by-side at rest coalesce to form a stable bound soliton molecule due to dipolar attraction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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