A specific mapping between topological superconductors and topological insulators. (1st September 2017)

• Record Type: Journal Article
• Authors: Lin, Yang; Hao, Weichang; Guo, Huaiming
• Is Part Of: Europhysics letters. Volume 118:Number 6(2017:Jun.)
• Publication Date: 2017-09-01
• Subjects: 11.15.Wx -- 11.15.Me; Physics -- Periodicals; Electronic journals; 530.05
• DOI: 10.1209/0295-5075/118/61002
• Languages: English
• ISSNs: 0295-5075

Abstract

Abstract: An interesting mapping between topological insulators (TI) and topological superconductors (TS) is presented. We show that if a Hamiltonian of a TI is purely imaginary, there is a corresponding TS with the Hamiltonian in the same form, but under a Majorana basis. Starting from the well-known TI in different dimensions, we perform the mapping explicitly. New TS systems and new understanding of the known TS are obtained. The result provides a natural way to construct topological nontrivial gapped Majorana systems, which may be engineered in the experimental setups with Majorana quasiparticles as the low-energy excitations.