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arXiv 1307.0002cond-mat.quant-gasquant-ph
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自旋-轨道耦合偶极玻色子的量子准晶

Quantum quasicrystals of spin-orbit coupled dipolar bosons

Sarang Gopalakrishnan, Ivar Martin, Eugene A. Demler

摘要:

我们研究准二维偶极玻色气体中的玻色子经历一个Rashba自旋轨道耦合。我们发现,由于自旋轨道耦合的简并色散最小值,结合长程偶极相互作用,可以稳定一些量子晶体和准晶基态。将玻色子与费米子物质耦合可以进一步稳定这些相。我们估计在现实的偶极凝聚体中应该可以检测到结晶相和准晶相,例如,镝,并讨论它们的对称性和激发。

英文摘要:

We study quasi-two-dimensional dipolar Bose gases in which the bosons experience a Rashba spin-orbit coupling. We show that the degenerate dispersion minimum due to the spin-orbit coupling, combined with the long-range dipolar interaction, can stabilize a number of quantum crystalline and quasicrystalline ground states. Coupling the bosons to a fermionic species can further stabilize these phases. We estimate that the crystalline and quasicrystalline phases should be detectable in realistic dipolar condensates, e.g., dysprosium, and discuss their symmetries and excitations.

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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