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Textures and Majorana Excitations in Multi-Component Neutral Fermi Superfluids

Yasumasa Tsutsumi

Published Mar 25, 2011• 0 citations
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We report on the fundamental properties of superfluids with d -wave pairing symmetry. We consider neutral atomic Fermi gases in a harmonic trap, the pairing being produced by a Feshbach resonance via a d -wave interaction channel. A Ginzburg–Landau (GL) functional is constructed, which is symmetrically constrained for five component order parameters (OPs). We find OP textures in the cyclic phase and stability conditions for a non-Abelian fractional 1/3-vortex under rotation. We propose a method of creating the interesting 1/3-vortex experimentally in atomic gases by optical means.
We report on fundamental properties of superfluids with d-wave pairing symmetry. We consider neutral atomic Fermi gases in a harmonic trap, the pairing being produced by a Feshbach resonance via a d-wave interaction channel. A Ginzburg-Landau (GL) functional is constructed which is symmetry constrained for five component order parameters (OP). We find OP textures in the cyclic phase and stability conditions for a non-Abelian fractional 1/3-vortex under rotation. It is proposed how to create the intriguing 1/3-vortex experimentally in atomic gases via optical means.