一维管平面阵列中的偶极玻色子
Dipolar bosons in a planar array of one-dimensional tubes
摘要：
本文研究了平面一维管阵列中玻色子原子或分子通过偶极相互作用的相互作用。我们考虑的情况下，其中的偶极子取向垂直于管的外部场。我们发现各种量子阶段达到从一个'滑动Luttinger液体'相，其中管保持Luttinger液体的二维电荷密度波有序相。出现两种不同的电荷密度波序：条纹相和棋盘相，条纹相是不同管中的玻色子对齐的。我们进一步指出如何区分发生阶段的实验。
英文摘要：
We investigate bosonic atoms or molecules interacting via dipolar interactions in a planar array of one-dimensional tubes. We consider the situation in which the dipoles are oriented perpendicular to the tubes by an external field. We find various quantum phases reaching from a `sliding Luttinger liquid' phase in which the tubes remain Luttinger liquids to a two-dimensional charge density wave ordered phase. Two different kinds of charge density wave order occur: a stripe phase in which the bosons in different tubes are aligned and a checkerboard phase. We further point out how to distinguish the occurring phases experimentally.
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