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Floquet Majorana Fermions for Topological Qubits

Authors :
Liu, Dong E.
Levchenko, Alex
Baranger, Harold U.
Source :
Phys. Rev. Lett. 111, 047002 (2013)
Publication Year :
2012

Abstract

We introduce and develop an approach to realizing a topological phase transition and non-Abelian statistics with dynamically induced Floquet Majorana Fermions (FMFs). When the periodic driving potential does not break fermion parity conservation, FMFs can encode quantum information. Quasi-energy analysis shows that a stable FMF zero mode and two other satellite modes exist in a wide parameter space with large quasi-energy gaps, which prevents transitions to other Floquet states under adiabatic driving. We also show that in the asymptotic limit FMFs preserve non-Abelian statistics and, thus, behave like their equilibrium counterparts.<br />Comment: 4 pages, 2 figures; supplementary information: 5 pages, 4 figures

Details

Database :
arXiv
Journal :
Phys. Rev. Lett. 111, 047002 (2013)
Publication Type :
Report
Accession number :
edsarx.1211.1404
Document Type :
Working Paper