Dipolar bosons in a planar array of one-dimensional tubes

Details Dipolar bosons in a planar array of one-dimensional tubes Dipolar bosons in a planar array of one-dimensional tubes

2007-11-06

arxiv.org/abs/0711.0889v2

Phys. Rev. Lett. 100, 130403 (2008)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevLett.100.130403

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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