Wigner Crystallization of Rotating Dipolar Fermions in the Fractional Quantum Hall Regime

Details Wigner Crystallization of Rotating Dipolar Fermions in the Fractional Quantum Hall Regime Wigner Crystallization of Rotating Dipolar Fermions in the Fractional Quantum Hall Regime

2010-04-18

arxiv.org/abs/1004.3002v2

Physics

Condensed Matter

Quantum Gases

15 pages, 3 figures

Scientific paper

We show the possible existence of the Wigner crystal (WC) in the Fractional Quantum Hall (FQH) regime. We find that the Landau-level mixing (LLM) will lower the energy of the WC significantly in the high-density regime. The WC is lower in energy than the FQH liquid in the high-density regime. We conclude that the crystal phase is expected at high density for rotating dipolar gases, which is consistent with non-rotating dipolar gases, but is inconsistent with the low-density conclusion from Baranov et al. [Phys. Rev. Lett. 100, 200402 (2008)], where the effect of LLM is ignored.

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