Microscopic calculations show the o vortex is the most stable axisymmetric vortex in 3P2 superfluids under strong magnetic fields and hosts two zero-energy Majorana fermions in its core.
Lifshitz transition in the double-core vortex in 3He-B
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abstract
We study the spectrum of fermion states localized within the vortex core of a weak-coupling p-wave superfluid. The low energy spectrum consists of two anomalous branches that cross the Fermi level as functions of the impact parameter, and generate large density of states at the locations of the half cores of the vortex. Fermi liquid interactions significantly change the vortex structure, which leads to Lifshitz transition in the effective Fermi surface of the vortex core fermions. We apply the results to revise the interpretation of an experiment on rotational dynamics of vortices in superfluid 3He-B.
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cond-mat.supr-con 1years
2019 1verdicts
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Microscopic description of axisymmetric vortices in $^{3}P_{2}$ superfluids
Microscopic calculations show the o vortex is the most stable axisymmetric vortex in 3P2 superfluids under strong magnetic fields and hosts two zero-energy Majorana fermions in its core.