Zero-energy vortex modes coexist with Majorana corner modes in a 2D second-order topological superconductor only when the normal-state spectrum is gapless with Dirac cones.
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Coexistence of gapless and gapped vortex modes with Majorana corner states in a 2D second-order topological superconductor
Zero-energy vortex modes coexist with Majorana corner modes in a 2D second-order topological superconductor only when the normal-state spectrum is gapless with Dirac cones.