Textures and Vortices in d-Wave Fermi Condensates in Atomic Gases - Condensed Matter > SuperconductivityReport as inadecuate




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Abstract: Fundamental properties of superfluids with d-wave pairing symmetry areinvestigated theoretically. We consider neutral atomic Fermi gases in aharmonic trap, the Cooper pairing being produced by a Feshbach resonance via ad-wave interaction channel. A Ginzburg-Landau GL functional is constructedwhich is symmetry constrained for five component order parameters OPs. Wefind stable OP textures and vortices for all the three phases which are knownto be the energy minimum of the GL functional; the ferromagnetic, polar andcyclic phases both at rest and under rotation. In particular, we touch upon thestability conditions for a non-Abelian fractional 1-3-vortex in the cyclicphase under rotation. It is proposed how to create the intriguing 1-3-vortexexperimentally in atomic gases via optical means.



Author: Hiroki M. Adachi, Yasumasa Tsutsumi, Kazushige Machida

Source: https://arxiv.org/







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