论文标题
关于相互作用在跨季节流动的原子冷凝物中的作用
On the role of interactions in trans-sonically flowing atomic condensates
论文作者
论文摘要
我们提供了流动原子玻色子凝结物物理学的联合数值分析研究，在外部陷阱的总和和阶梯电位的联合存在下，从冷凝物中加速了原子，从而产生了一对相邻的黑色和白孔。特别是，我们专注于超音速区域中出现的快速增长的密度调制模式，这是一种与黑洞激光现象相关的实验观察到的特征。对相互作用在此过程中的作用的直接评估表明，根据原子波的线性干扰而不是集体效应，对实验数据的解释。我们的结论进一步支持了施罗德格方程的分析解决方案在通风波函数方面。
We provide a joint numerical-analytical study of the physics of a flowing atomic Bose-Einstein condensate in the combined presence of an external trap and a step potential which accelerates the atoms out of the condensate creating a pair of neighbouring black- and white- hole horizons. In particular, we focus on the rapidly growing density modulation pattern that appears in the supersonic region, an experimentally observed feature that was related to black-hole lasing phenomena. A direct assessment of the role of interactions in this process suggests an interpretation of the experimental data in terms of linear interference of atomic waves rather than collective effects. Our conclusions are further supported by an analytical solution of the Schrodinger equation in terms of Airy wavefunctions.
