标题： 玻色-爱因斯坦凝聚体中孤子的再分布在准周期光晶格中 显示英文标题

标题： The solitons redistribution in Bose-Einstein condensate in quasiperiodic optical lattice

摘要： 我们数值研究了放置在周期性和准周期性二维光晶格（OL）中的玻色-爱因斯坦凝聚体（BEC）中的动力学激发。 在排斥性平均场相互作用的情况下，BEC的量子隧穿导致孤子的逐步分裂和次级孤子的生成，这些次级孤子迁移至最近的势阱极小值处。 当对光晶格施加一系列pi脉冲（相位冲击）时，会出现非平凡的孤子动力学。 这种突然的扰动会导致次级孤子的动态重新分布，从而形成人工的孤子超晶格。 分析了不同几何结构的OL。 显示英文摘要

摘要： We numerically study the dynamical excitations in Bose-Einstein condensate (BEC) placed in periodic and quasi-periodic 2D optical lattice (OL). In case of the repulsive mean-field interaction the BEC quantum tunnelling leads to a progressive soliton's splitting and generating of secondary solitons, which migrate to closest trapping potential minima. A nontrivial soliton dynamics appears when a series of pi-pulses (phase kicks) are applied to the optical lattice. Such sudden perturbation produces a dynamic redistribution of the secondary solitons, leading to a formation of an artificial solitonic superlattice. Different geometries of OL are analyzed.