DIII topological superconductivity with emergent time-reversal symmetry
Author(s)
Reeg, Christopher; Schrade, Constantin; Klinovaja, Jelena; Loss, Daniel
DownloadPhysRevB.96.161407.pdf (194.9Kb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
We find a class of topological superconductors which possess an emergent time-reversal symmetry that is present only after projecting to an effective low-dimensional model. We show that a topological phase in symmetry class DIII can be realized in a noninteracting system coupled to an s-wave superconductor only if the physical time-reversal symmetry of the system is broken, and we provide three general criteria that must be satisfied in order to have such a phase. We also provide an explicit model which realizes the class DIII topological superconductor in 1D. We show that, just as in time-reversal invariant topological superconductors, the topological phase is characterized by a Kramers pair of Majorana fermions that are protected by the emergent time-reversal symmetry.
Date issued
2017-10Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review B
Publisher
American Physical Society
Citation
Reeg, Christopher et al. "DIII topological superconductivity with emergent time-reversal symmetry." Physical Review B 96, 16 (October 2017): 161407(R) © 2017 American Physical Society
Version: Final published version
ISSN
2469-9950
2469-9969