Central Charge Extended Supersymmetric Structures for Fundamental   Fermions Around non-Abelian Vortices
  Fermionic zero modes around non-abelian vortices are shown that they constitute two $N=2$, $d=1$ supersymmetric quantum mechanics algebras. These two algebras can be combined under certain circumstances to form a central charge extended $N=4$ supersymmetric quantum algebra. We thoroughly discuss the implications of the existence of supersymmetric quantum mechanics algebras, in the quantum Hilbert space of the fermionic zero modes. 
K. Kleidis, V.K. Oikonomou
hep-th