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arXiv · 1802.06128

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
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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 $\mathcal{PT}$-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.

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Marcel Klett, Holger Cartarius, Dennis Dast, Jörg Main, Günter Wunner. 2018-02-16. Topological edge states in the Su-Schrieffer-Heeger model subject to balanced particle gain and loss. https://doi.org/10.1140/epjd%2Fe2018-90502-3

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