Majorana edge modes with gain and loss
PHYSICAL REVIEW A, vol.93, no.6, 2016 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 93 Issue: 6
- Publication Date: 2016
- Doi Number: 10.1103/physreva.93.062130
- Journal Name: PHYSICAL REVIEW A
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Anadolu University Affiliated: Yes
Abstract
We consider a non-Hermitian generalization of the Kitaev model and study the existence of stable Majorana zero energy modes. We show that they exist in the limit of zero chemical potential even if balanced gain and loss are randomly distributed along the lattice. We show that Majorana zero modes also appear if the chemical potential is different from zero provided that not the full Hamiltonian but the non-Hermitian part of the Hamiltonian is PT symmetric.