Many-Body Localization in Central Spin.

POSTER

Abstract

We investigate many-body localization in a periodic one dimensional Heisenberg chain, with a central spin interacting equally with each spin in the chain. The chain is subject to a uniaxial quenched disorder field. Apart from a detailed analysis of the phase diagram, we study the time evolution of nonlocal out-ot-time-ordered correlators to diagnose the information scrambling in the dynamics of the system.

*This work was supported by the Brazilian agencies CNPq, CAPES and FAPESP grant 2016/08468-0.

Presenters

  • Marcos Trivelato

    • Sao Carlos Institute of Physics at the University of Sao Paulo

Authors

  • Marcos Trivelato

    • Sao Carlos Institute of Physics at the University of Sao Paulo

  • Carlos Egues

    • Sao Carlos Institute of Physics at the University of Sao Paulo

  • John Schliemann

    • Institute for Theoretical Physics, University of Regensburg

  • Joao Vitor Ignacio Costa

    • Sao Carlos Institute of Physics at the University of Sao Paulo