Volume 118, Number 6, June 2017
|Number of page(s)||5|
|Section||The Physics of Elementary Particles and Fields|
|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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