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arXiv 2312.03390cond-mat.quant-gas
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二元偶极超固体的激发

Excitations of a binary dipolar supersolid

W. Kirkby, Au-Chen Lee, D. Baillie, T. Bland, F. Ferlaino, P. B. Blakie, R. N. Bisset

AI总结:

本文预测了线性晶体几何中二元偶极超固体的激发谱,识别出三个戈德斯通分支及一个自旋希格斯分支,并发现晶体分支分裂为光学声子和声学声子。

摘要:

我们预测了线性晶体几何中二元偶极超固体丰富的激发谱,其中基态由两个部分不混溶的成分组成,具有交替、互锁的畴结构。我们识别出三个戈德斯通分支,每个分支具有第一声、第二声或自旋声特征。与双原子晶体类似,所得晶格具有双畴原胞基元,我们发现晶体(类第一声)分支分裂为光学声子和声学声子。我们还发现了一个与超固体调制幅度相关的自旋希格斯分支。

英文摘要:

We predict a rich excitation spectrum of a binary dipolar supersolid in a linear crystal geometry, where the ground state consists of two partially immiscible components with alternating, interlocking domains. We identify three Goldstone branches, each with first-sound, second-sound or spin-sound character. In analogy with a diatomic crystal, the resulting lattice has a two-domain primitive basis and we find that the crystal (first-sound-like) branch is split into optical and acoustic phonons. We also find a spin-Higgs branch that is associated with the supersolid modulation amplitude.

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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