Harmonically trapped dipolar fermions in a two-dimensional square lattice

Details Harmonically trapped dipolar fermions in a two-dimensional square lattice Harmonically trapped dipolar fermions in a two-dimensional square lattice

2011-12-13

arxiv.org/abs/1112.2846v2

Phys. Rev. A 85, 021604(R) (2012)

Physics

Condensed Matter

Quantum Gases

5 pages, 6 figures

Scientific paper

10.1103/PhysRevA.85.021604

We consider dipolar fermions in a two-dimensional square lattice and a harmonic trapping potential. The anisotropy of the dipolar interaction combined with the lattice leads to transitions between phases with density order of different symmetries. We show that the attractive part of the dipolar interaction results in a superfluid phase which is suppressed by density order. The trapping potential is demonstrated to make the different phases co-exist, forming ring and island structures. The phases with density and superfluid order can overlap forming regions with supersolid order.

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