Topology and the doped Kondo Heisenberg model

ORAL

Abstract

In previous works, it has been proposed that the doped Kondo Heisenberg model is topological and hosts Majorana zero modes. These Majorana zero modes correspond to solitons of the gapped spin sector of the model. We have investigated this claim on the lattice using DMRG, and found no evidence for these proposed zero modes. In light of this, we revisit the original claims that the model is topological using bosonization. We discuss how this continuum analysis fits with the numeric data and the lattice model.

*Julian May-Mann is supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE – 1746047

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Presenters

  • Julian May-Mann

    • University of Illinois at Urbana-Champaign

Authors

  • Julian May-Mann

    • University of Illinois at Urbana-Champaign

  • Ryan Levy

    • University of Illinois at Urbana-Champaign

  • Eduardo Fradkin

    • University of Illinois at Urbana-Champaign

  • Bryan Clark

    • University of Illinois at Urbana-Champaign

  • Rodrigo B Soto

    • Departamento de Física, Pontificia Universidad Católica de Chile

  • Gil Young Cho

    • Department of Physics, Pohang University of Science and Technology (POSTECH)
    • Korea Institute for Advanced Study
    • Pohang University of Science and Technology