Floquet Majorana Fermions for Topological Qubits

ORAL

Abstract

We 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.

Authors

  • D.E. Liu

    Duke University

  • A. Levchenko

    Michigan State University, Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA

  • H.U. Baranger

    Duke University