Density waves and supersolidity in rapidly rotating atomic Fermi gases

Abstract

We study theoretically the low-temperature phases of a two-component atomic Fermi gas with attractive s-wave interactions under conditions of rapid rotation. We find that, in the extreme quantum limit, when all particles occupy the lowest Landau level, the normal state is unstable to the formation of "charge" density wave (CDW) order. At lower rotation rates, when many Landau levels are occupied, we show that the low-temperature phases can be supersolids, involving both CDW and superconducting order.

4 pages, 1 figure, uses feynmp.sty

References in corpus (6)

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• Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Resonantly-paired fermionic superfluids
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Cited by in corpus (8)

• Theory of ultracold Fermi gases
• Supersolid phases of dipolar bosons in optical lattices with a staggered flux
• Destroying superfluidity by rotating a Fermi gas at unitarity
• Vortex formation in a rotating two-component Fermi gas
• Pair density waves and vortices in an elongated two-component Fermi gas
• Breathing mode frequencies of a rotating Fermi gas in the BCS-BEC crossover region
• Pairing in ultracold Fermi gases in the lowest Landau level
• Fractionalization via ${\mathbb{Z}}_2$ Gauge Fields at a Cold Atom Quantum Hall Transition