| Issue |
EPL
Volume 118, Number 6, June 2017
|
|
|---|---|---|
| Article Number | 61002 | |
| Number of page(s) | 5 | |
| Section | The Physics of Elementary Particles and Fields | |
| DOI | https://doi.org/10.1209/0295-5075/118/61002 | |
| Published online | 01 September 2017 | |
A specific mapping between topological superconductors and topological insulators
Department of Physics, Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), Beihang University - Beijing, 100191, China
Received: 15 April 2017
Accepted: 3 August 2017
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.
PACS: 11.15.Wx – Topologically massive gauge theories / 11.15.Me – Strong-coupling expansions
© EPLA, 2017
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