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Topological edge states in the Su-Schrieffer-Heeger model subject to balanced particle gain and loss

  • Marcel Klett
  • Holger Cartarius
  • Dennis Dast
  • Jörg Main
  • Günter Wunner
Regular Article
  • 26 Downloads

Abstract

We investigate the Su-Schrieffer-Heeger model in presence of an injection and removal of particles, introduced via a master equation in Lindblad form. It is shown that the dynamics of the density matrix follows the predictions of calculations in which the gain and loss are modeled by complex PT-symmetric potentials. In particular it is found that there is a clear distinction in the dynamics between the topologically different cases known from the stationary eigenstates.

Graphical abstract

Keywords

Atomic Physics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Marcel Klett
    • 1
    • 2
  • Holger Cartarius
    • 1
    • 3
  • Dennis Dast
    • 1
  • Jörg Main
    • 1
  • Günter Wunner
    • 1
  1. 1.Institut für Theoretische Physik 1Universität StuttgartStuttgartGermany
  2. 2.Institut für Theoretische Physik and Center for Quantum ScienceUniversität TübingenTübingenGermany
  3. 3.Physik und ihre DidaktikUniversität StuttgartStuttgartGermany

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