旋量玻色-爱因斯坦凝聚体中的极化子POLARONS IN SPINOR BOSE-EINSTEIN CONDENSATES
尹禹璁,刘波扬
摘要(Abstract):
本文研究了自旋杂质浸入到自旋为1的旋量玻色-爱因斯坦凝聚体中所形成的极化子现象。利用Fr9hlich哈密顿量模型,我们分别计算了弱耦合区和强耦合区中极化子的基态能量与有效质量。在弱相互作用区,我们采用二阶微扰理论进行处理;而在强耦合区,我们构造了极化子态的解析近似解并使用变分法计算极化子的能量和有效质量。此外,我们还对旋量玻色-爱因斯坦凝聚体中极化子效应的可观测特征进行了定量估算,以供未来实验参考。
关键词(KeyWords): 自旋杂质;旋量玻色-爱因斯坦凝聚体;自陷态转变;二阶微扰理论
基金项目(Foundation):
作者(Author): 尹禹璁,刘波扬
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