Polarization Plateau in Atomic Fermi Gas Loaded on Triangular Optical Lattice

Details Polarization Plateau in Atomic Fermi Gas Loaded on Triangular Optical Lattice Polarization Plateau in Atomic Fermi Gas Loaded on Triangular Optical Lattice

2009-02-19

arxiv.org/abs/0902.3278v1

Phys. Rev. A 79, 061602(R) (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevA.79.061602

In order to demonstrate that atomic Fermi gas is a good experimental reality in studying unsolved problems in frustrated interacting-spin systems, we numerically examine the Mott core state emerged by loading two-component atomic Fermi gases on triangular optical lattices. Consequently, we find that plateau like structures are observable in the Mott core polarization as a function of the population imbalance. These plateau states are caused by a flexibility that the surrounding metallic region absorbs the excess imbalance to keep the plateau states inside the Mott core. We also find spin patterns peculiar to the plateau states inside the Mott core.

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